Jenjamin3000/MNLP_M3_MCQA_before_FT · Datasets at Hugging Face

id stringlengths 6 15	question_type stringclasses 1 value	question stringlengths 15 683	choices listlengths 4 4	answer stringclasses 5 values	explanation stringclasses 481 values
sciq-1992	multiple_choice	After cell division what are the two new cells called?	[ "daughter cells", "production cells", "offspring cells", "step cells" ]	A
sciq-689	multiple_choice	Einstein’s equation helps scientists understand what happens in nuclear reactions and why they produce so much what?	[ "light", "food", "hydrogen", "energy" ]	D
sciq-1021	multiple_choice	Geysers are created when what is heated beneath the earth's surface?	[ "water", "air", "magma", "gases" ]	A
sciq-4467	multiple_choice	Which division of the peripheral nervous system carries messages from sense organs and internal organs to the central nervous system?	[ "extrasensory division", "vascular division", "neural division", "sensory division" ]	D
sciq-8240	multiple_choice	What is used to convert concentrations to collisions per second?	[ "speeds factor", "particles factor", "frequency factor", "collision meter" ]	C
sciq-7723	multiple_choice	Long-term storage of what element occurs when matter from living organisms is buried deep underground and becomes fossilized?	[ "hydrogen", "Nitrogen", "oxygen", "carbon" ]	D
sciq-4086	multiple_choice	Elements involved in nuclear reactions are what?	[ "static", "detectable", "radioactive", "inert" ]	C
scienceQA-7917	multiple_choice	Select the living thing.	[ "boxwood shrub", "swing set", "house", "helicopter" ]	A	A boxwood shrub is a living thing. Boxwood shrubs grow and respond to their environment. They need food and water. Boxwood shrubs are made up of many cells. People cut bushes and shrubs into decorative shapes called topiaries. Topiaries can be cut to look like animals, patterns, or other designs. A helicopter is not a living thing. A helicopter does not have all the traits of a living thing. It needs energy to fly, but it does not eat food. Helicopters get energy from gasoline or other fuel. They do not grow. A house is not a living thing. Houses do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A swing set is not a living thing. Swing sets do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.
sciq-2057	multiple_choice	What are the high points in a transverse wave called?	[ "apex", "peaks", "crests", "waves" ]	C
sciq-10951	multiple_choice	What term describes the long-term, predictable atmospheric conditions of a specific area?	[ "hemosphere", "wind patterns", "solar activity", "climate" ]	D
ai2_arc-1	multiple_choice	Which of the following statements best explains why magnets usually stick to a refrigerator door?	[ "The refrigerator door is smooth.", "The refrigerator door contains iron.", "The refrigerator door is a good conductor.", "The refrigerator door has electric wires in it." ]	B
scienceQA-8202	multiple_choice	What do these two changes have in common? water evaporating from a puddle burning a piece of wood	[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling." ]	C	Step 1: Think about each change. Water evaporating from a puddle is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed. Burning a piece of wood is a chemical change. When the wood burns, the type of matter in it changes. The wood turns black and gives off smoke. Step 2: Look at each answer choice. Both are only physical changes. Water evaporating is a physical change. But burning wood does not. Both are chemical changes. Burning a piece of wood is a chemical change. But water evaporating from a puddle is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
scienceQA-2156	multiple_choice	Select the vertebrate.	[ "rock lobster", "earthworm", "yellow jacket", "gray crowned crane" ]	D	A yellow jacket is an insect. Like other insects, a yellow jacket is an invertebrate. It does not have a backbone. It has an exoskeleton. A rock lobster is a crustacean. Like other crustaceans, a rock lobster is an invertebrate. It does not have a backbone. It has an exoskeleton. An earthworm is a worm. Like other worms, an earthworm is an invertebrate. It does not have a backbone. It has a soft body. A gray crowned crane is a bird. Like other birds, a gray crowned crane is a vertebrate. It has a backbone.
sciq-6136	multiple_choice	Planes fly in what layer of the atmosphere because there is less friction and turbulence?	[ "stratosphere", "crust", "mesosphere", "ozone layer" ]	A
sciq-10887	multiple_choice	What is the term for the application of science to solve problems?	[ "research", "ingenuity", "mathematics", "technology" ]	D
ai2_arc-369	multiple_choice	Which of these is a mixture?	[ "salt water", "sugar", "water vapor", "salt" ]	A
sciq-9527	multiple_choice	What does hypoxic mean?	[ "Oxygen rate", "higher oxygen", "standard oxygen level", "low oxygen" ]	D
sciq-9398	multiple_choice	What is the term for a technique used to separate out homogeneous mixtures in which one or more solids are dissolved in a liquid?	[ "evaporation", "absorption", "transpiration", "distillation" ]	A
sciq-10162	multiple_choice	Give an example of air pollution while painting indoors.	[ "gas fumes", "paint fumes", "fuel fumes", "variety fumes" ]	B
sciq-4299	multiple_choice	Which system in the body exchanges gases with the outside air?	[ "vascular", "digestive", "respiratory", "immune" ]	C
sciq-1361	multiple_choice	What are all of the living or once-living aspects of the environment called?	[ "abiotic factors", "biotic factors", "fossils", "photic factors" ]	B
sciq-9435	multiple_choice	What is the supply of water to land or crops to help growth called?	[ "irrigation", "drainage", "absorbtion", "precipitation" ]	A
sciq-11374	multiple_choice	Nearly all fish reproduce sexually and have what?	[ "separate sexes", "modified sexes", "single sexes", "flexible sexes" ]	A
sciq-10305	multiple_choice	The nuclear envelope is a double-layered plasma membrane like the cell membrane, although without what?	[ "membrane proteins", "cytoplasm", "nucleic acids", "cell walls" ]	A
sciq-5289	multiple_choice	What can be linked together to form disaccharides or polysaccharides?	[ "nitrates", "amino acids", "monosaccharides", "carbohydrates" ]	C
sciq-10678	multiple_choice	The rate at which an unstable isotope decays is measured in a unit known as what?	[ "half-life", "full-life", "half-time", "staying-life" ]	A
sciq-4890	multiple_choice	Hiv has proteins called what, internal to the envelope, which help stabilize virion shape?	[ "sphere proteins", "reduction proteins", "matrix proteins", "step proteins" ]	C
sciq-1596	multiple_choice	Name the fever that is caused by a virus that has antigens similar to molecules in human heart tissues.	[ "Dengue fever", "yellow fever", "chronic fever", "rheumatic fever" ]	D
sciq-3550	multiple_choice	Asexual, sexual, budding, and parthenogenesis are all forms of what?	[ "absorption", "hibernation", "photosynthesis", "reproduction" ]	D
sciq-5282	multiple_choice	What are substances that cannot be broken down into simpler substances with different properties called?	[ "compounds", "elements", "atoms", "molecules" ]	B
sciq-2531	multiple_choice	When light passes from one medium to another, it changes what?	[ "density", "color", "temperature", "speed" ]	D
sciq-7645	multiple_choice	What evolutionary concept emphasizes reproductive isolation?	[ "chemical species concept", "reproductive method concept", "biological species concept", "toxic species concept" ]	C
sciq-4565	multiple_choice	What structure passes oxygen and nutrients to a growing fetus in mammals?	[ "spinal cord", "placenta", "uterus", "vas deferens" ]	B
sciq-1944	multiple_choice	What are specialized cells that are capable of sending electrical as well as chemical signals?	[ "neurons", "enzymes", "hormones", "ions" ]	A
ai2_arc-563	multiple_choice	If enough heat is taken away from a container of water, what will happen to the water?	[ "It will begin to boil.", "It will become a solid.", "It will turn into a gas.", "It will increase in weight." ]	B
sciq-8968	multiple_choice	What type of matter in the spinal cord has the appearance of an ink-blot test and is subdivided into regions that are referred to as horns?	[ "wet matter", "dark matter", "bright matter", "gray matter" ]	D
sciq-1880	multiple_choice	Free-flowing electrons enable what materials to conduct electricity and heat very well?	[ "alloys", "acids", "noble gases", "metals" ]	D
scienceQA-7287	multiple_choice	What do these two changes have in common? peeling a banana getting a haircut	[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by cooling.", "Both are caused by heating." ]	B	Step 1: Think about each change. Peeling a banana is a physical change. The peel is not covering the rest of the fruit anymore. But both the peel and the banana are still made of the same type of matter as before. Getting a haircut is a physical change. Your hair is shorter after a haircut. But it is still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-9930	multiple_choice	What is the method that is a plan for asking questions and testing possible answers called?	[ "scientific investigation", "forecasting", "independent variable", "sample size" ]	A
sciq-843	multiple_choice	Flowers pollinated by what means generally lack brightly colored parts?	[ "wind", "butterflies", "larvae", "bees" ]	A
sciq-11081	multiple_choice	What value of dissolved substances is higher than that of their corresponding precipitate?	[ "binary", "negentropy", "entropy", "ordiny" ]	C
sciq-11329	multiple_choice	What bond is the force of attraction that holds together oppositely charged ions?	[ "magnetic", "ionic", "harmonic", "iconic" ]	B
sciq-6213	multiple_choice	Enthalpy is a measure of the total energy of what kind of system?	[ "thermodynamic", "macroscopic", "planetary", "hypodermic" ]	A
sciq-839	multiple_choice	Prescribed to treat allergies, antihistamines and corticosteroids help control what system that attacks allergens?	[ "nervous system", "immune system", "cardiovascular", "reproductive system" ]	B
scienceQA-3961	multiple_choice	How long is a hammer?	[ "10 feet", "10 miles", "10 inches", "10 yards" ]	C	The best estimate for the length of a hammer is 10 inches. 10 feet, 10 yards, and 10 miles are all too long.
sciq-1118	multiple_choice	What is it called when the chance that a certain event will occur?	[ "probability", "procession", "difficulty", "mutation" ]	A
sciq-4296	multiple_choice	What are nutrients the body needs in relatively large amounts called?	[ "vitamins", "macronutrients", "adulterants", "abundances" ]	B
sciq-10297	multiple_choice	In a fullerene, what atoms are bonded to three other atoms in a soccer ball pattern?	[ "oxygen", "carbon", "hydrogen", "positive" ]	B
scienceQA-8630	multiple_choice	Select the chemical formula for this molecule.	[ "HS", "H3S2", "H2S", "HS2" ]	C	H is the symbol for hydrogen. According to the legend, hydrogen atoms are shown in light gray. S is the symbol for sulfur. According to the legend, sulfur atoms are shown in yellow. This ball-and-stick model shows a molecule with two hydrogen atoms and one sulfur atom. The chemical formula will contain the symbols H and S. There are two hydrogen atoms, so H will have a subscript of 2. There is one sulfur atom, so S will not have a subscript. The correct formula is H2 S. The diagram below shows how each part of the chemical formula matches with each part of the model above.
sciq-2960	multiple_choice	Because it produces oxygen, what plant process was necessary for the evolution of animals?	[ "death", "germination", "photosynthesis", "reproduction" ]	C
sciq-8980	multiple_choice	Precipitation, evaporation, transpiration, and condensation are part of what cycle?	[ "life cycle", "water cycle", "air cycle", "cold cycle" ]	B
sciq-4967	multiple_choice	Saturated hydrocarbons are given the general name of what?	[ "carbohydrates", "enzymes", "alkanes", "lipids" ]	C
sciq-2851	multiple_choice	What are biochemical compounds, such as fats and oils, that consist of fatty acids and store energy?	[ "oils", "lipids", "tissues", "proteins" ]	B
ai2_arc-459	multiple_choice	What is a worldwide increase in temperature called?	[ "greenhouse effect", "global warming", "ozone depletion", "solar heating" ]	B
sciq-10429	multiple_choice	Diffusion is an effective transport mechanism over the spatial scales typically found at what level?	[ "cellular", "atom", "electromagnetic", "molecular" ]	A
sciq-480	multiple_choice	What is the number of electrons equal to in every electrically neutral atom?	[ "Electrons", "nucleus", "molecules", "protons" ]	D
sciq-10169	multiple_choice	In what part of the carbon cycle does carbon move between living things and the air?	[ "abdaspac cycle", "endothermic cycle", "biotic cycle", "envelop cycle" ]	C
ai2_arc-469	multiple_choice	Which of these is an element?	[ "KBr", "O_{2}", "2KCl", "FeO_{2}" ]	B
sciq-5556	multiple_choice	What are the basic units of structure and function in living organisms?	[ "cells", "molecules", "proteins", "lipids" ]	A
sciq-7941	multiple_choice	What kind of resource is soil?	[ "finite", "renewable", "viable", "nonrenewable" ]	B
sciq-4199	multiple_choice	Flatworms reproduce sexually. in most species, the same individuals produce both what?	[ "eggs and sperm", "heart and sperm", "diploid and haploid", "gametes" ]	A
sciq-7661	multiple_choice	Unlike corals, jellyfish spend most of their lives as what?	[ "cercariae", "medusae", "infants", "pupae" ]	B
scienceQA-11086	multiple_choice	Select the living thing.	[ "chair", "almond tree", "clay", "candy" ]	B	Clay is not a living thing. Clay does not have all of the traits of a living thing. It can be formed into different shapes, but it does not grow or respond to the world around it. It does not need food or water. An almond tree is a living thing. Almond trees grow and respond to their environment. They need food and water. Almond trees are made up of many cells. Almond trees are plants. They make their own food using water, carbon dioxide, and energy from sunlight. A chair is not a living thing. Chairs do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. Candy is not a living thing. Candy does not have all of the traits of a living thing. It is sweet and can be shaped like fruit. But it does not grow like real fruit. It does not need food or water.
sciq-9494	multiple_choice	What makes luminous dials glow in the dark?	[ "devil substances", "polymer substances", "eerie substances", "phosphorescent substances" ]	D
sciq-1586	multiple_choice	Which chemical element is the basis of all life on earth?	[ "oxygen", "nitrogen", "hydrogen", "carbon" ]	D
sciq-10253	multiple_choice	Which stage of life is typically easier for learning multiple languages?	[ "childhood", "adolescenc", "infancy", "adulthood" ]	A
sciq-4277	multiple_choice	What kind of ph would you find in water from bogs?	[ "normal ph", "lower ph", "higher ph", "regular ph" ]	B
sciq-9052	multiple_choice	The fact that all animals have certain traits in common shows that they share what?	[ "a common ancestor", "a common planet", "a common gene", "a common brain" ]	A
sciq-6959	multiple_choice	The innermost layer of the sun is known as what?	[ "surface", "photosphere", "core", "convective zone" ]	C
scienceQA-5452	multiple_choice	What do these two changes have in common? stapling an envelope shut ice crystals forming on a window	[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]	C	Step 1: Think about each change. Stapling an envelope shut is a physical change. The envelope and the staple get new shapes. Both are still made of the same type of matter. Ice crystals forming on a window is a change of state. So, it is a physical change. Water vapor in the air can change directly into ice when it touches a very cold window! A change of state from a gas to a solid is called depositing. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Ice crystals form on a window when water vapor in the air becomes ice. This is caused by cooling. But stapling an envelope shut is not.
sciq-8895	multiple_choice	What directs the amino acids to be introduced into the growing protein chain in the proper sequence?	[ "gene template", "rna template", "organelle template", "organism template" ]	B
sciq-10089	multiple_choice	What are the two possible reduction products for brf3?	[ "brf and brf4", "brf2 and brf4", "brg and brf", "brf and br2" ]	D
sciq-8567	multiple_choice	Vaccination is the process of exposing a person to pathogens on purpose so the person will develop what?	[ "autonomy", "allergy", "immunity", "sensitivity" ]	C
ai2_arc-491	multiple_choice	The respiratory system cannot deliver oxygen to the cells of the body, nor can it remove carbon dioxide, without which two body systems?	[ "muscular and nervous", "digestive and muscular", "cardiovascular and nervous", "cardiovascular and muscular" ]	D
sciq-7563	multiple_choice	What element is all life built around?	[ "neon", "carbon", "oxygen", "hydrogen" ]	B
ai2_arc-231	multiple_choice	Which sequence of energy transformations occurs after a battery-operated flashlight is turned on?	[ "electrical -> light -> chemical", "electrical -> chemical -> light", "chemical -> light -> electrical", "chemical -> electrical -> light" ]	E
sciq-81	multiple_choice	Carboxylic acids are weak acids, meaning they are not 100% ionized in what?	[ "air", "liquid", "ethanol", "water" ]	D
sciq-3521	multiple_choice	What is an insect's hard outer exoskeleton made out of?	[ "casein", "melanin", "lectin", "chitin" ]	D
sciq-10033	multiple_choice	What chemicals in the liver support glucose homeostasis?	[ "Force and insulin", "glucagon and insulin", "lactobacilli and insulin", "cytosol and insulin" ]	B
sciq-5364	multiple_choice	Exposure to what can increase the amount of pigment in the skin and make it appear darker?	[ "ultraviolet radiation", "gamma rays", "sunlight", "nuclear radiation" ]	A
sciq-4278	multiple_choice	Where do most of the digestion reactions occur?	[ "large intestine", "liver", "mouth", "small intestine" ]	D
sciq-1899	multiple_choice	Farsightedness, or hyperopia, is the condition in which distant objects are seen clearly, but nearby objects are?	[ "inverted", "invisible", "blurry", "darker" ]	C
sciq-8398	multiple_choice	What are the blood vessels that carry blood toward the heart and tend to have thinner walls?	[ "glands", "veins", "clots", "capillaries" ]	B
sciq-10740	multiple_choice	What element do plants use to store energy as atp?	[ "nitrogen", "chlorophyll", "oxygen", "carbon" ]	C
sciq-7375	multiple_choice	The earth's magnetic poles have done what repeatedly in the past?	[ "switched places", "stayed the same", "rotated", "demagnetized" ]	A
sciq-7773	multiple_choice	What is the structure in a diploid sporophyte that undergoes meiosis to form haploid spores?	[ "dikaryotic", "hymenium", "hyphae", "sporangium" ]	D
ai2_arc-1047	multiple_choice	Wind is becoming more common as a source of energy. Wind farms require large open spaces for the wind turbines. A negative consequence of this technology is wind turbines	[ "are an inexpensive source of energy.", "cause little pollution to the environment.", "may hurt the flying animals in the area.", "are a renewable source of energy." ]	C
sciq-1261	multiple_choice	What kind of compound, contained in coffee and alcohol, increases urine volume?	[ "acid", "diuretic", "additive", "anabolic" ]	B
sciq-8468	multiple_choice	How does the atomic number change during beta emission?	[ "increases by two", "stays the same", "increases by one", "decreases by one" ]	C
sciq-868	multiple_choice	What regulates the thyroid gland in a body?	[ "negative feedback loop", "positive feedback loop", "normal feedback loop", "upper feedback loop" ]	A
sciq-4965	multiple_choice	What kind of interactions do polar substances experience?	[ "monopole-monopole interactions", "monopole-dipole interactions", "axial interactions", "dipole-dipole interactions" ]	D
sciq-4914	multiple_choice	Modern taxonomy is based on many hypotheses' of the evolutionary history of organisms, known as this?	[ "cladistic", "phylogeny", "pathogeny", "algorithm" ]	B
sciq-9556	multiple_choice	What type of amplitudes and wavelengths avoid detection in deep water?	[ "high and wide", "low and wide", "low and long", "high and long" ]	C
sciq-9419	multiple_choice	Scrubbers and catalytic converters are examples of technologies that change what into harmless compounds?	[ "toxins", "pollutants", "contaminants", "mutations" ]	B
sciq-10440	multiple_choice	What type of solid has atoms arranged in a repeating pattern?	[ "metals", "hydrocarbons", "ions", "crystals" ]	D
sciq-9071	multiple_choice	What is the common term for erythrocytesare, specialized cells that circulate delivering oxygen to cells and are formed from stem cells in the bone marrow?	[ "red blood cells", "white blood cells", "monocytes", "plateletes" ]	A
sciq-11458	multiple_choice	What term describes a wave in which particles of the medium vibrate at right angles, or perpendicular, to the direction that the wave travels?	[ "drainage wave", "stimulation wave", "symmetrical wave", "transverse wave" ]	D
sciq-8645	multiple_choice	The tendency of an object to resist a change in its motion is called?	[ "inertia", "gravitation", "friction", "magnetism" ]	A
sciq-884	multiple_choice	Which elements fall between metals and nonmetals in the periodic table?	[ "metalloids", "noble gases", "synthetics", "halogens" ]	A
ai2_arc-888	multiple_choice	Many stars can be seen in the sky at night. Which statement best explains why the Sun appears brighter than the stars seen in the night sky?	[ "The Sun is bigger than the stars seen in the night sky.", "The Sun is smaller than the stars seen in the night sky.", "The Sun is closer to Earth than the stars seen in the night sky.", "The Sun is farther from Earth than the stars seen in the night sky." ]	C

sciq-1992

multiple_choice

After cell division what are the two new cells called?

[ "daughter cells", "production cells", "offspring cells", "step cells" ]

A

sciq-689

multiple_choice

Einstein’s equation helps scientists understand what happens in nuclear reactions and why they produce so much what?

[ "light", "food", "hydrogen", "energy" ]

D

sciq-1021

multiple_choice

Geysers are created when what is heated beneath the earth's surface?

[ "water", "air", "magma", "gases" ]

A

sciq-4467

multiple_choice

Which division of the peripheral nervous system carries messages from sense organs and internal organs to the central nervous system?

[ "extrasensory division", "vascular division", "neural division", "sensory division" ]

D

sciq-8240

multiple_choice

What is used to convert concentrations to collisions per second?

[ "speeds factor", "particles factor", "frequency factor", "collision meter" ]

C

sciq-7723

multiple_choice

Long-term storage of what element occurs when matter from living organisms is buried deep underground and becomes fossilized?

[ "hydrogen", "Nitrogen", "oxygen", "carbon" ]

D

sciq-4086

multiple_choice

Elements involved in nuclear reactions are what?

[ "static", "detectable", "radioactive", "inert" ]

C

scienceQA-7917

multiple_choice

Select the living thing.

[ "boxwood shrub", "swing set", "house", "helicopter" ]

A

A boxwood shrub is a living thing. Boxwood shrubs grow and respond to their environment. They need food and water. Boxwood shrubs are made up of many cells. People cut bushes and shrubs into decorative shapes called topiaries. Topiaries can be cut to look like animals, patterns, or other designs. A helicopter is not a living thing. A helicopter does not have all the traits of a living thing. It needs energy to fly, but it does not eat food. Helicopters get energy from gasoline or other fuel. They do not grow. A house is not a living thing. Houses do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A swing set is not a living thing. Swing sets do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.

sciq-2057

multiple_choice

What are the high points in a transverse wave called?

[ "apex", "peaks", "crests", "waves" ]

C

sciq-10951

multiple_choice

What term describes the long-term, predictable atmospheric conditions of a specific area?

[ "hemosphere", "wind patterns", "solar activity", "climate" ]

D

ai2_arc-1

multiple_choice

Which of the following statements best explains why magnets usually stick to a refrigerator door?

[ "The refrigerator door is smooth.", "The refrigerator door contains iron.", "The refrigerator door is a good conductor.", "The refrigerator door has electric wires in it." ]

B

scienceQA-8202

multiple_choice

What do these two changes have in common? water evaporating from a puddle burning a piece of wood

[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling." ]

C

Step 1: Think about each change. Water evaporating from a puddle is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed. Burning a piece of wood is a chemical change. When the wood burns, the type of matter in it changes. The wood turns black and gives off smoke. Step 2: Look at each answer choice. Both are only physical changes. Water evaporating is a physical change. But burning wood does not. Both are chemical changes. Burning a piece of wood is a chemical change. But water evaporating from a puddle is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.

scienceQA-2156

multiple_choice

Select the vertebrate.

[ "rock lobster", "earthworm", "yellow jacket", "gray crowned crane" ]

D

A yellow jacket is an insect. Like other insects, a yellow jacket is an invertebrate. It does not have a backbone. It has an exoskeleton. A rock lobster is a crustacean. Like other crustaceans, a rock lobster is an invertebrate. It does not have a backbone. It has an exoskeleton. An earthworm is a worm. Like other worms, an earthworm is an invertebrate. It does not have a backbone. It has a soft body. A gray crowned crane is a bird. Like other birds, a gray crowned crane is a vertebrate. It has a backbone.

sciq-6136

multiple_choice

Planes fly in what layer of the atmosphere because there is less friction and turbulence?

[ "stratosphere", "crust", "mesosphere", "ozone layer" ]

A

sciq-10887

multiple_choice

What is the term for the application of science to solve problems?

[ "research", "ingenuity", "mathematics", "technology" ]

D

ai2_arc-369

multiple_choice

Which of these is a mixture?

[ "salt water", "sugar", "water vapor", "salt" ]

A

sciq-9527

multiple_choice

What does hypoxic mean?

[ "Oxygen rate", "higher oxygen", "standard oxygen level", "low oxygen" ]

D

sciq-9398

multiple_choice

What is the term for a technique used to separate out homogeneous mixtures in which one or more solids are dissolved in a liquid?

[ "evaporation", "absorption", "transpiration", "distillation" ]

A

sciq-10162

multiple_choice

Give an example of air pollution while painting indoors.

[ "gas fumes", "paint fumes", "fuel fumes", "variety fumes" ]

B

sciq-4299

multiple_choice

Which system in the body exchanges gases with the outside air?

[ "vascular", "digestive", "respiratory", "immune" ]

C

sciq-1361

multiple_choice

What are all of the living or once-living aspects of the environment called?

[ "abiotic factors", "biotic factors", "fossils", "photic factors" ]

B

sciq-9435

multiple_choice

What is the supply of water to land or crops to help growth called?

[ "irrigation", "drainage", "absorbtion", "precipitation" ]

A

sciq-11374

multiple_choice

Nearly all fish reproduce sexually and have what?

[ "separate sexes", "modified sexes", "single sexes", "flexible sexes" ]

A

sciq-10305

multiple_choice

The nuclear envelope is a double-layered plasma membrane like the cell membrane, although without what?

[ "membrane proteins", "cytoplasm", "nucleic acids", "cell walls" ]

A

sciq-5289

multiple_choice

What can be linked together to form disaccharides or polysaccharides?

[ "nitrates", "amino acids", "monosaccharides", "carbohydrates" ]

C

sciq-10678

multiple_choice

The rate at which an unstable isotope decays is measured in a unit known as what?

[ "half-life", "full-life", "half-time", "staying-life" ]

A

sciq-4890

multiple_choice

Hiv has proteins called what, internal to the envelope, which help stabilize virion shape?

[ "sphere proteins", "reduction proteins", "matrix proteins", "step proteins" ]

C

sciq-1596

multiple_choice

Name the fever that is caused by a virus that has antigens similar to molecules in human heart tissues.

[ "Dengue fever", "yellow fever", "chronic fever", "rheumatic fever" ]

D

sciq-3550

multiple_choice

Asexual, sexual, budding, and parthenogenesis are all forms of what?

[ "absorption", "hibernation", "photosynthesis", "reproduction" ]

D

sciq-5282

multiple_choice

What are substances that cannot be broken down into simpler substances with different properties called?

[ "compounds", "elements", "atoms", "molecules" ]

B

sciq-2531

multiple_choice

When light passes from one medium to another, it changes what?

[ "density", "color", "temperature", "speed" ]

D

sciq-7645

multiple_choice

What evolutionary concept emphasizes reproductive isolation?

[ "chemical species concept", "reproductive method concept", "biological species concept", "toxic species concept" ]

C

sciq-4565

multiple_choice

What structure passes oxygen and nutrients to a growing fetus in mammals?

[ "spinal cord", "placenta", "uterus", "vas deferens" ]

B

sciq-1944

multiple_choice

What are specialized cells that are capable of sending electrical as well as chemical signals?

[ "neurons", "enzymes", "hormones", "ions" ]

A

ai2_arc-563

multiple_choice

If enough heat is taken away from a container of water, what will happen to the water?

[ "It will begin to boil.", "It will become a solid.", "It will turn into a gas.", "It will increase in weight." ]

B

sciq-8968

multiple_choice

What type of matter in the spinal cord has the appearance of an ink-blot test and is subdivided into regions that are referred to as horns?

[ "wet matter", "dark matter", "bright matter", "gray matter" ]

D

sciq-1880

multiple_choice

Free-flowing electrons enable what materials to conduct electricity and heat very well?

[ "alloys", "acids", "noble gases", "metals" ]

D

scienceQA-7287

multiple_choice

What do these two changes have in common? peeling a banana getting a haircut

[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by cooling.", "Both are caused by heating." ]

B

Step 1: Think about each change. Peeling a banana is a physical change. The peel is not covering the rest of the fruit anymore. But both the peel and the banana are still made of the same type of matter as before. Getting a haircut is a physical change. Your hair is shorter after a haircut. But it is still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.

sciq-9930

multiple_choice

What is the method that is a plan for asking questions and testing possible answers called?

[ "scientific investigation", "forecasting", "independent variable", "sample size" ]

A

sciq-843

multiple_choice

Flowers pollinated by what means generally lack brightly colored parts?

[ "wind", "butterflies", "larvae", "bees" ]

A

sciq-11081

multiple_choice

What value of dissolved substances is higher than that of their corresponding precipitate?

[ "binary", "negentropy", "entropy", "ordiny" ]

C

sciq-11329

multiple_choice

What bond is the force of attraction that holds together oppositely charged ions?

[ "magnetic", "ionic", "harmonic", "iconic" ]

B

sciq-6213

multiple_choice

Enthalpy is a measure of the total energy of what kind of system?

[ "thermodynamic", "macroscopic", "planetary", "hypodermic" ]

A

sciq-839

multiple_choice

Prescribed to treat allergies, antihistamines and corticosteroids help control what system that attacks allergens?

[ "nervous system", "immune system", "cardiovascular", "reproductive system" ]

B

scienceQA-3961

multiple_choice

How long is a hammer?

[ "10 feet", "10 miles", "10 inches", "10 yards" ]

C

The best estimate for the length of a hammer is 10 inches. 10 feet, 10 yards, and 10 miles are all too long.

sciq-1118

multiple_choice

What is it called when the chance that a certain event will occur?

[ "probability", "procession", "difficulty", "mutation" ]

A

sciq-4296

multiple_choice

What are nutrients the body needs in relatively large amounts called?

[ "vitamins", "macronutrients", "adulterants", "abundances" ]

B

sciq-10297

multiple_choice

In a fullerene, what atoms are bonded to three other atoms in a soccer ball pattern?

[ "oxygen", "carbon", "hydrogen", "positive" ]

B

scienceQA-8630

multiple_choice

Select the chemical formula for this molecule.

[ "HS", "H3S2", "H2S", "HS2" ]

C

H is the symbol for hydrogen. According to the legend, hydrogen atoms are shown in light gray. S is the symbol for sulfur. According to the legend, sulfur atoms are shown in yellow. This ball-and-stick model shows a molecule with two hydrogen atoms and one sulfur atom. The chemical formula will contain the symbols H and S. There are two hydrogen atoms, so H will have a subscript of 2. There is one sulfur atom, so S will not have a subscript. The correct formula is H2 S. The diagram below shows how each part of the chemical formula matches with each part of the model above.

sciq-2960

multiple_choice

Because it produces oxygen, what plant process was necessary for the evolution of animals?

[ "death", "germination", "photosynthesis", "reproduction" ]

C

sciq-8980

multiple_choice

Precipitation, evaporation, transpiration, and condensation are part of what cycle?

[ "life cycle", "water cycle", "air cycle", "cold cycle" ]

B

sciq-4967

multiple_choice

Saturated hydrocarbons are given the general name of what?

[ "carbohydrates", "enzymes", "alkanes", "lipids" ]

C

sciq-2851

multiple_choice

What are biochemical compounds, such as fats and oils, that consist of fatty acids and store energy?

[ "oils", "lipids", "tissues", "proteins" ]

B

ai2_arc-459

multiple_choice

What is a worldwide increase in temperature called?

[ "greenhouse effect", "global warming", "ozone depletion", "solar heating" ]

B

sciq-10429

multiple_choice

Diffusion is an effective transport mechanism over the spatial scales typically found at what level?

[ "cellular", "atom", "electromagnetic", "molecular" ]

A

sciq-480

multiple_choice

What is the number of electrons equal to in every electrically neutral atom?

[ "Electrons", "nucleus", "molecules", "protons" ]

D

sciq-10169

multiple_choice

In what part of the carbon cycle does carbon move between living things and the air?

[ "abdaspac cycle", "endothermic cycle", "biotic cycle", "envelop cycle" ]

C

ai2_arc-469

multiple_choice

Which of these is an element?

[ "KBr", "O_{2}", "2KCl", "FeO_{2}" ]

B

sciq-5556

multiple_choice

What are the basic units of structure and function in living organisms?

[ "cells", "molecules", "proteins", "lipids" ]

A

sciq-7941

multiple_choice

What kind of resource is soil?

[ "finite", "renewable", "viable", "nonrenewable" ]

B

sciq-4199

multiple_choice

Flatworms reproduce sexually. in most species, the same individuals produce both what?

[ "eggs and sperm", "heart and sperm", "diploid and haploid", "gametes" ]

A

sciq-7661

multiple_choice

Unlike corals, jellyfish spend most of their lives as what?

[ "cercariae", "medusae", "infants", "pupae" ]

B

scienceQA-11086

multiple_choice

Select the living thing.

[ "chair", "almond tree", "clay", "candy" ]

B

Clay is not a living thing. Clay does not have all of the traits of a living thing. It can be formed into different shapes, but it does not grow or respond to the world around it. It does not need food or water. An almond tree is a living thing. Almond trees grow and respond to their environment. They need food and water. Almond trees are made up of many cells. Almond trees are plants. They make their own food using water, carbon dioxide, and energy from sunlight. A chair is not a living thing. Chairs do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. Candy is not a living thing. Candy does not have all of the traits of a living thing. It is sweet and can be shaped like fruit. But it does not grow like real fruit. It does not need food or water.

sciq-9494

multiple_choice

What makes luminous dials glow in the dark?

[ "devil substances", "polymer substances", "eerie substances", "phosphorescent substances" ]

D

sciq-1586

multiple_choice

Which chemical element is the basis of all life on earth?

[ "oxygen", "nitrogen", "hydrogen", "carbon" ]

D

sciq-10253

multiple_choice

Which stage of life is typically easier for learning multiple languages?

[ "childhood", "adolescenc", "infancy", "adulthood" ]

A

sciq-4277

multiple_choice

What kind of ph would you find in water from bogs?

[ "normal ph", "lower ph", "higher ph", "regular ph" ]

B

sciq-9052

multiple_choice

The fact that all animals have certain traits in common shows that they share what?

[ "a common ancestor", "a common planet", "a common gene", "a common brain" ]

A

sciq-6959

multiple_choice

The innermost layer of the sun is known as what?

[ "surface", "photosphere", "core", "convective zone" ]

C

scienceQA-5452

multiple_choice

What do these two changes have in common? stapling an envelope shut ice crystals forming on a window

[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]

C

Step 1: Think about each change. Stapling an envelope shut is a physical change. The envelope and the staple get new shapes. Both are still made of the same type of matter. Ice crystals forming on a window is a change of state. So, it is a physical change. Water vapor in the air can change directly into ice when it touches a very cold window! A change of state from a gas to a solid is called depositing. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Ice crystals form on a window when water vapor in the air becomes ice. This is caused by cooling. But stapling an envelope shut is not.

sciq-8895

multiple_choice

What directs the amino acids to be introduced into the growing protein chain in the proper sequence?

[ "gene template", "rna template", "organelle template", "organism template" ]

B

sciq-10089

multiple_choice

What are the two possible reduction products for brf3?

[ "brf and brf4", "brf2 and brf4", "brg and brf", "brf and br2" ]

D

sciq-8567

multiple_choice

Vaccination is the process of exposing a person to pathogens on purpose so the person will develop what?

[ "autonomy", "allergy", "immunity", "sensitivity" ]

C

ai2_arc-491

multiple_choice

The respiratory system cannot deliver oxygen to the cells of the body, nor can it remove carbon dioxide, without which two body systems?

[ "muscular and nervous", "digestive and muscular", "cardiovascular and nervous", "cardiovascular and muscular" ]

D

sciq-7563

multiple_choice

What element is all life built around?

[ "neon", "carbon", "oxygen", "hydrogen" ]

B

ai2_arc-231

multiple_choice

Which sequence of energy transformations occurs after a battery-operated flashlight is turned on?

[ "electrical -> light -> chemical", "electrical -> chemical -> light", "chemical -> light -> electrical", "chemical -> electrical -> light" ]

E

sciq-81

multiple_choice

Carboxylic acids are weak acids, meaning they are not 100% ionized in what?

[ "air", "liquid", "ethanol", "water" ]

D

sciq-3521

multiple_choice

What is an insect's hard outer exoskeleton made out of?

[ "casein", "melanin", "lectin", "chitin" ]

D

sciq-10033

multiple_choice

What chemicals in the liver support glucose homeostasis?

[ "Force and insulin", "glucagon and insulin", "lactobacilli and insulin", "cytosol and insulin" ]

B

sciq-5364

multiple_choice

Exposure to what can increase the amount of pigment in the skin and make it appear darker?

[ "ultraviolet radiation", "gamma rays", "sunlight", "nuclear radiation" ]

A

sciq-4278

multiple_choice

Where do most of the digestion reactions occur?

[ "large intestine", "liver", "mouth", "small intestine" ]

D

sciq-1899

multiple_choice

Farsightedness, or hyperopia, is the condition in which distant objects are seen clearly, but nearby objects are?

[ "inverted", "invisible", "blurry", "darker" ]

C

sciq-8398

multiple_choice

What are the blood vessels that carry blood toward the heart and tend to have thinner walls?

[ "glands", "veins", "clots", "capillaries" ]

B

sciq-10740

multiple_choice

What element do plants use to store energy as atp?

[ "nitrogen", "chlorophyll", "oxygen", "carbon" ]

C

sciq-7375

multiple_choice

The earth's magnetic poles have done what repeatedly in the past?

[ "switched places", "stayed the same", "rotated", "demagnetized" ]

A

sciq-7773

multiple_choice

What is the structure in a diploid sporophyte that undergoes meiosis to form haploid spores?

[ "dikaryotic", "hymenium", "hyphae", "sporangium" ]

D

ai2_arc-1047

multiple_choice

Wind is becoming more common as a source of energy. Wind farms require large open spaces for the wind turbines. A negative consequence of this technology is wind turbines

[ "are an inexpensive source of energy.", "cause little pollution to the environment.", "may hurt the flying animals in the area.", "are a renewable source of energy." ]

C

sciq-1261

multiple_choice

What kind of compound, contained in coffee and alcohol, increases urine volume?

[ "acid", "diuretic", "additive", "anabolic" ]

B

sciq-8468

multiple_choice

How does the atomic number change during beta emission?

[ "increases by two", "stays the same", "increases by one", "decreases by one" ]

C

sciq-868

multiple_choice

What regulates the thyroid gland in a body?

[ "negative feedback loop", "positive feedback loop", "normal feedback loop", "upper feedback loop" ]

A

sciq-4965

multiple_choice

What kind of interactions do polar substances experience?

[ "monopole-monopole interactions", "monopole-dipole interactions", "axial interactions", "dipole-dipole interactions" ]

D

sciq-4914

multiple_choice

Modern taxonomy is based on many hypotheses' of the evolutionary history of organisms, known as this?

[ "cladistic", "phylogeny", "pathogeny", "algorithm" ]

B

sciq-9556

multiple_choice

What type of amplitudes and wavelengths avoid detection in deep water?

[ "high and wide", "low and wide", "low and long", "high and long" ]

C

sciq-9419

multiple_choice

Scrubbers and catalytic converters are examples of technologies that change what into harmless compounds?

[ "toxins", "pollutants", "contaminants", "mutations" ]

B

sciq-10440

multiple_choice

What type of solid has atoms arranged in a repeating pattern?

[ "metals", "hydrocarbons", "ions", "crystals" ]

D

sciq-9071

multiple_choice

What is the common term for erythrocytesare, specialized cells that circulate delivering oxygen to cells and are formed from stem cells in the bone marrow?

[ "red blood cells", "white blood cells", "monocytes", "plateletes" ]

A

sciq-11458

multiple_choice

What term describes a wave in which particles of the medium vibrate at right angles, or perpendicular, to the direction that the wave travels?

[ "drainage wave", "stimulation wave", "symmetrical wave", "transverse wave" ]

D

sciq-8645

multiple_choice

The tendency of an object to resist a change in its motion is called?

[ "inertia", "gravitation", "friction", "magnetism" ]

A

sciq-884

multiple_choice

Which elements fall between metals and nonmetals in the periodic table?

[ "metalloids", "noble gases", "synthetics", "halogens" ]

A

ai2_arc-888

multiple_choice

Many stars can be seen in the sky at night. Which statement best explains why the Sun appears brighter than the stars seen in the night sky?

[ "The Sun is bigger than the stars seen in the night sky.", "The Sun is smaller than the stars seen in the night sky.", "The Sun is closer to Earth than the stars seen in the night sky.", "The Sun is farther from Earth than the stars seen in the night sky." ]

C