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-688	multiple_choice	Knees and elbows are examples of what part of the skeletal system?	[ "joints", "nerves", "muscles", "cartilage" ]	A
sciq-11372	multiple_choice	What happens to light when it reflects from a rough surface?	[ "gets diffused", "becomes isolated", "becomes concentrated", "reflects" ]	A
sciq-2165	multiple_choice	What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both?	[ "artificial", "devoid", "obscene", "opaque" ]	D
sciq-5628	multiple_choice	What refers to the development and nourishment of an embryo within the mother’s body but not inside an egg?	[ "adolescence", "birth", "vivipary", "ovulation" ]	C
sciq-6037	multiple_choice	Defined as a substance in foods and beverages that is essential to human survival, what term encompasses water, energy-yielding and body-building substances, and vitamins and minerals?	[ "nutrients", "calories", "molecules", "sustenance" ]	A
sciq-6100	multiple_choice	What process would be impossible without some variation in the inherited traits of organisms within a species?	[ "environmental selection", "natural selection", "characteristic selection", "darwin's selection" ]	B
ai2_arc-757	multiple_choice	The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s. Changes from the continental drift concept to the plate tectonics theory required which of the following?	[ "strong earthquakes occurring along fault zones", "data and ideas being shared among scientists", "a scientific law being passed by Congress", "teachers beginning to teach the newer theory" ]	B
sciq-4488	multiple_choice	What energy is the energy of motion?	[ "thermal", "optimal", "kinetic", "potential" ]	C
ai2_arc-525	multiple_choice	A student investigates how speed changes as a ball travels down a ramp. Measurements taken by computer every second are recorded on a data table. Which diagram will best display the data from this table?	[ "a bar graph", "a line graph", "a pie chart", "a pictograph" ]	B
sciq-5285	multiple_choice	Amino acids are joined together to form a chain at what molecular structure?	[ "ribosomes", "chloroplasts", "chromosomes", "DNA" ]	A
sciq-9066	multiple_choice	In arthropods, coxal glands and malphigian tubules perform what role?	[ "excretion", "ingestion", "photosynthesis", "reproduction" ]	A
ai2_arc-164	multiple_choice	Compared to the Sun, a red star most likely has a greater	[ "volume.", "rate of rotation.", "surface temperature.", "number of orbiting planets." ]	A
sciq-15	multiple_choice	Boron only occurs naturally in compounds with what element?	[ "oxygen", "helium", "carbon", "nitrogen" ]	A
scienceQA-1595	multiple_choice	What do these two changes have in common? crushing a mineral into powder mixing lettuce and salad dressing	[ "Both are only physical changes.", "Both are caused by heating.", "Both are chemical changes.", "Both are caused by cooling." ]	A	Step 1: Think about each change. Crushing a mineral into powder is a physical change. The mineral breaks into tiny pieces. But it is still made of the same type of matter. Mixing lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different 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-4018	multiple_choice	Overproduction of offspring, combined with limited resources, results in what?	[ "concentration", "competition", "continuation", "contention" ]	B
sciq-10462	multiple_choice	What are unique about prokaryotic cells' organelles?	[ "no cell walls", "no epidermis", "not membrane-bound", "only membrane - bound" ]	C
sciq-7628	multiple_choice	What type of orbit do the planets make in the solar system?	[ "elliptical", "conical", "vertical", "figure eight" ]	A
sciq-8313	multiple_choice	Where does the process of digestion start?	[ "small intestine", "stomach", "esophagus", "mouth" ]	D
sciq-953	multiple_choice	Intensity is defined to be the power per unit area carried by a what?	[ "wave", "shift", "filament", "wire" ]	A
sciq-4152	multiple_choice	What is the only mechanism that consistently causes adaptive evolution?	[ "neutral selection", "genetic drift", "natural selection", "artificial selection" ]	C
sciq-4626	multiple_choice	What is the term for the measure of the force of gravity pulling down on an object?	[ "mass", "pressure", "density", "weight" ]	D
scienceQA-12218	multiple_choice	What do these two changes have in common? water evaporating from a lake baking cookies	[ "Both are caused by cooling.", "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating." ]	D	Step 1: Think about each change. Water evaporating from a lake 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. Baking cookies is a chemical change. The type of matter in the cookie dough changes when it is baked. The cookie dough turns into cookies! Step 2: Look at each answer choice. Both are only physical changes. Water evaporating is a physical change. But baking cookies is not. Both are chemical changes. Baking cookies is a chemical change. But water evaporating from a lake is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
ai2_arc-866	multiple_choice	Because water can hold a large amount of heat, which effect do oceans have on nearby land areas?	[ "They prevent rapid extreme temperature changes.", "They form high-pressure areas that cause magma currents.", "They provide the energy that triggers volcanic events.", "They lower the freezing point of fresh water." ]	A
sciq-11441	multiple_choice	In which phase do the sister chromatids separate?	[ "latent phase", "passivation", "prophase", "anaphase" ]	D
sciq-5150	multiple_choice	What is the name of the major sex hormone in females?	[ "glucose", "estrogen", "testosterone", "insulin" ]	B
sciq-2274	multiple_choice	What type of habitat do ferns need to grow?	[ "cold", "moist", "dry", "elevated" ]	B
sciq-660	multiple_choice	Bacterial stis can be cured with what?	[ "pesticides", "antioxidants", "antibiotics", "antiviral drugs" ]	C
sciq-6774	multiple_choice	What kinds of waves are composed of various oscillating electric and magnetic fields?	[ "elastic", "tidal", "electromagnetic", "seismic" ]	C
sciq-2527	multiple_choice	What is the measure of change in velocity of a moving object?	[ "acceleration", "kinetic energy", "vibration", "transmission" ]	A
sciq-8475	multiple_choice	What's the name for an atom that has gained or lost an electron?	[ "isotope", "neutrino", "an ion", "an photon" ]	C
sciq-9404	multiple_choice	What are known as the building blocks of proteins?	[ "organism acids", "protein acids", "amino acids", "bases" ]	C
sciq-3625	multiple_choice	What is used to measure current through a resistor?	[ "thermometers", "microscopes", "spectrographs", "ammeters" ]	D
sciq-4696	multiple_choice	Most motions in nature follow ________ rather than straight lines?	[ "vertical paths", "sharp paths", "curved paths", "horizontal paths" ]	C
sciq-6557	multiple_choice	Which organ in the body controls the amount of water loss in urine in response to maintaining homeostasis?	[ "kidneys", "liver", "spleen", "lungs" ]	A
sciq-4585	multiple_choice	Snails, scallops, and squids are what type of invertebrate?	[ "mollusk", "arthropod", "crustacean", "algae" ]	A
scienceQA-5941	multiple_choice	What do these two changes have in common? water evaporating from a lake building a tower out of magnetic blocks	[ "Both are chemical changes.", "Both are caused by heating.", "Both are caused by cooling.", "Both are only physical changes." ]	D	Step 1: Think about each change. Water evaporating from a lake 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. Building a tower out of magnetic blocks is a physical change. The blocks stick to each other to form a tower. But the blocks are still made of the same type of matter as before. 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. Water evaporating is caused by heating. But building a tower out of magnetic blocks is not. Both are caused by cooling. Neither change is caused by cooling.
ai2_arc-305	multiple_choice	A student used the dimmest setting on a light microscope to observe a euglena and an amoeba. The student shined a narrow beam of light at the top of the cover slip. She observed that the euglena swam up toward the light but the amoeba did not. She knew the amoeba was alive because it slowly changed shape while she watched. What inference should the student draw from her observation?	[ "An amoeba can only move side to side.", "An amoeba is unable to respond to light.", "An amoeba moves too slowly to observe.", "An amoeba only moves when it is hungry." ]	B
sciq-98	multiple_choice	Millions of years ago, plants used energy from the sun to form what?	[ "carbon compounds", "evolution", "fossil fuels", "greenhouse gases" ]	A
sciq-8845	multiple_choice	Biomass is the mass of biological what?	[ "tissues", "lipids", "proteins", "organisms" ]	D
sciq-4648	multiple_choice	What is defined in physics as the amount of force pushing against a given area?	[ "pressure", "resistance", "energy", "gravity" ]	A
sciq-5004	multiple_choice	During the embryonic stage of vertebrates, the notochord develops into what?	[ "brain stem", "umbilical cord", "rib cage", "backbone" ]	D
sciq-372	multiple_choice	Both diffusion and effusion are related to the speed at which what objects move?	[ "solids", "electricity", "gas molecules", "copper molecules" ]	C
sciq-8589	multiple_choice	What kind of radiation can be used to disrupt the dna-rna protein synthesis cycle that allows bacteria to reproduce?	[ "infrared", "ionizing", "non-ionizing", "microwave" ]	B
sciq-1042	multiple_choice	The chemical behavior of elements can largely be explained by what?	[ "chemical configuration", "neutron configuration", "electron configurations", "proton configuration" ]	C
sciq-6316	multiple_choice	Most reptiles reproduce sexually and have what type of fertilization?	[ "mechanical", "external", "additional", "internal" ]	D
sciq-6428	multiple_choice	Lattice energy cannot be measured directly. what is its calculation based on?	[ "change in temperature", "microscopic inspection", "measured energy changes", "chemical reactions" ]	C
ai2_arc-266	multiple_choice	A student is trying to identify a mineral that has a nonmetallic luster and is black. It can also be scratched with a fingernail. According to the mineral reference sheet, the unidentified mineral is most likely	[ "mica.", "magnetite.", "hornblende.", "quartz." ]	A
sciq-9155	multiple_choice	Amino acids broken down by metabolic process are mostly recycled into new what?	[ "enzymes", "hormones", "lipids", "proteins" ]	D
sciq-4837	multiple_choice	What is the most common bacterial sti in the u. s.?	[ "diarrhea", "chlamydia", "influenza", "tuberculosis" ]	B
sciq-6504	multiple_choice	The hydration of what is what makes many alcohols?	[ "enzymes", "lipids", "alkenes", "malts" ]	C
sciq-7621	multiple_choice	What is the key to the demographic transition?	[ "higher expatriation", "higher birth rates", "reduced family size", "higher death rates" ]	C
sciq-11617	multiple_choice	What instrument has a resolution many times greater than a light microscope, and can be used to see the details on the outside of a cell?	[ "element microscope", "electron microscope", "complex microscope", "molecular microscope" ]	B
sciq-7254	multiple_choice	Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what?	[ "nucleus to neutrons", "electrons to neutrons", "protons to neutrons", "atoms to neutrons" ]	C
sciq-1435	multiple_choice	The most common two-lens telescope, like the simple microscope, uses lenses of what shape?	[ "convex", "concave", "angular", "cylindrical" ]	A
sciq-2606	multiple_choice	What in the axils of leaves and stems give rise to branches?	[ "axillary buds", "nodules", "chloroplasts", "meristems" ]	A
sciq-6872	multiple_choice	Unlike wild animals, what type of species are genetically uniform, making them more vulnerable to die-out from disease?	[ "mammals", "domestic species", "free-range species", "urbane species" ]	B
sciq-11070	multiple_choice	What type of muscle makes up most of the heart?	[ "heart muscle", "chest muscles", "cardiac muscle", "respiratory muscle" ]	C
sciq-850	multiple_choice	Defecating, urination, and even childbirth involve cooperation between the diaphragm and these?	[ "skeletal muscles", "heart muscles", "lung muscles", "abdominal muscles" ]	D
sciq-5082	multiple_choice	Noninfectious diseases can't be passed from one person to another. instead, these types of diseases are caused by factors such as environment, genetics and what?	[ "education", "age", "weight", "lifestyle" ]	D
sciq-5116	multiple_choice	Burning fossil fuels produces air pollution and what?	[ "carbon dioxide", "liquid dioxide", "oxygen", "acid rain" ]	A
sciq-1005	multiple_choice	What three characteristics do waves have?	[ "reflection, refraction and deflection", "spin, refraction, and deflection", "theory , refraction and deflection", "structure , refraction and deflection" ]	A
sciq-1263	multiple_choice	What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?	[ "endothermic", "ectothermic", "mimetic", "etheric" ]	B
scienceQA-3018	multiple_choice	Select the chemical formula for this molecule.	[ "P3C", "HPCl3", "PCl2", "PCl3" ]	D	P is the symbol for phosphorus. Cl is the symbol for chlorine. This ball-and-stick model shows a molecule with one phosphorus atom and three chlorine atoms. The chemical formula will contain the symbols P and Cl. There is one phosphorus atom, so P will not have a subscript. There are three chlorine atoms, so Cl will have a subscript of 3. The correct formula is PCl3. The diagram below shows how each part of the chemical formula matches with each part of the model above.
sciq-3624	multiple_choice	What term is used to describe the energy reserve carbohydrate of animals?	[ "lactose", "fructose", "glycogen", "sucrose" ]	C
sciq-6617	multiple_choice	Electrons are located at fixed distances from the nucleus, what are they called?	[ "energy levels", "Positive levels", "Energy layers", "energy concentrations" ]	A
sciq-8717	multiple_choice	What is the term for a structure within the cytoplasm that performs a specific job in the cell?	[ "ribosome", "organelle", "mitochondria", "nucleus" ]	B
sciq-7922	multiple_choice	Atoms of different elements can combine in simple whole number ratios to form what?	[ "chemical compounds", "mixtures", "carbon compounds", "combinations" ]	A
ai2_arc-129	multiple_choice	Which best describes two organ systems working together to help maintain homeostasis?	[ "The reproductive organs produce sex cells.", "The nerves carry signals from the eye to the brain.", "The bones and muscles of the hand work together to grip a pencil.", "The muscles of the chest tighten to push carbon dioxide out of the lungs." ]	D
sciq-704	multiple_choice	What is the thick fluid in the space between bones that cushions the joint?	[ "interstitial fluid", "amniotic fluid", "synovial fluid", "collagen" ]	C
sciq-2741	multiple_choice	What is the term for an amount of force pushing against a given area?	[ "force", "resistance", "mass", "pressure" ]	D
ai2_arc-236	multiple_choice	Which characteristic can a human offspring inherit?	[ "facial scar", "blue eyes", "long hair", "broken leg" ]	B
sciq-10228	multiple_choice	During what period on earth was coal formed?	[ "Mesozoic", "Neoproterozoic", "Neoproterozoic era", "the carboniferous period" ]	D
sciq-4939	multiple_choice	Maintaining a high metabolic rate takes a lot of what?	[ "hydrogen", "power", "energy", "fuel" ]	C
sciq-8972	multiple_choice	What do we call the recycling of inorganic matter between living organisms and their environment?	[ "phosphorus cycle", "water cycle", "biogeochemical cycle", "nutrient cycle" ]	C
sciq-4661	multiple_choice	Similarity in biochemicals, like the glucose used by virtually all living things for energy, provides evidence of what?	[ "gravity", "DNA", "variation", "evolution" ]	D
scienceQA-9960	multiple_choice	Select the animal.	[ "Hydrangea bushes can grow colorful flowers.", "Maple trees have star-shaped leaves.", "Snowy owls eat small animals.", "Rose bushes can grow colorful flowers." ]	C	A rose bush is a plant. It can grow colorful flowers. Most rose bushes have sharp thorns. The thorns help protect the rose bush from being eaten by animals. A snowy owl is an animal. It eats small animals. Snowy owls live in cold places. Snowy owls have feathers on their feet to protect them from the cold. A maple tree is a plant. It has star-shaped leaves. Maple trees have green leaves in the spring and summer. In the fall, their leaves turn yellow, red, or brown. A hydrangea bush is a plant. It can grow colorful flowers. Hydrangea bushes can have blue, white, purple, or pink flowers.
sciq-7988	multiple_choice	What is the name for substances with a ph above 7?	[ "bases", "nutrient", "protein", "acid" ]	A
scienceQA-4652	multiple_choice	How long is a raisin?	[ "12 meters", "12 kilometers", "12 millimeters", "12 centimeters" ]	C	The best estimate for the length of a raisin is 12 millimeters. 12 centimeters, 12 meters, and 12 kilometers are all too long.
sciq-8988	multiple_choice	Shrimp are an example of what group within the arthropods?	[ "myriapods", "scorpion", "crustaceans", "insect" ]	C
ai2_arc-838	multiple_choice	Which system has layers of smooth muscle tissue that contract to move solid and liquid nutrients and waste through the body?	[ "respiratory", "skeletal", "endocrine", "digestive" ]	D
sciq-1073	multiple_choice	The energy changes in what reactions are enormous compared with those of even the most energetic chemical reactions, and they result in a measurable change of mass?	[ "molecular reaction", "nuclear reactions", "methane combustion", "metabolic reaction" ]	B
sciq-9401	multiple_choice	What does parasitic mean?	[ "symbiotic", "welcome guest", "lives in host", "mutual benefit" ]	C
sciq-10118	multiple_choice	Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what?	[ "nanoparticles", "endocytosis", "modulators", "mitosis" ]	B
ai2_arc-80	multiple_choice	An ice cube placed in sunlight melts quickly. Which BEST explains this event?	[ "The Sun is far away.", "The Sun makes heat.", "The ice cube is a solid.", "The ice cube looks clear." ]	B
sciq-1602	multiple_choice	What parts of comets make them easy to see?	[ "craters and tails", "arcs and tails", "novas and tails", "comas and tails" ]	D
sciq-5509	multiple_choice	Carnivores are animals that eat other animals. the word carnivore is derived from latin and literally means this?	[ "amount eater", "meat eater", "thick eater", "leaf eater" ]	B
sciq-6114	multiple_choice	What is the name for the cooler, darker areas on the sun’s surface?	[ "anomalies", "sunspots", "corona", "aurora borealis" ]	B
sciq-7102	multiple_choice	What do decomposers release when they break down dead organisms?	[ "carbon dioxide", "nutrients", "methane", "acids" ]	B
sciq-5229	multiple_choice	A sperm cell and an egg cell fuse to become what?	[ "embryo", "unfertilized egg", "fertilized egg", "fetus" ]	C
sciq-9937	multiple_choice	What is the concentration of gas molecules in the mesosphere?	[ "medium density", "very low density", "low density", "high density" ]	B
sciq-9307	multiple_choice	Ponds and lakes are examples of what kind of biome?	[ "standing freshwater biome", "standing liquid biome", "standing marine biome", "standing lake biome" ]	A
sciq-2400	multiple_choice	The barrier defenses are not a response to infections, but they are continuously working to protect against a broad range of what?	[ "nutrients", "pathogens", "ecosystems", "mates" ]	B
sciq-219	multiple_choice	What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution?	[ "water", "turpentine", "liquid", "ammonia" ]	A
sciq-9271	multiple_choice	What are the two main types of diabetes?	[ "type 1, type 2", "type 0, 1", "type a, b", "type 3, 4" ]	A
sciq-4916	multiple_choice	The study of energy and energy transfer involving physical matter is what?	[ "geology", "thermodynamics", "nuclear energy", "biochemistry" ]	B
sciq-1405	multiple_choice	What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated?	[ "sterilization", "distillation", "dispersion", "conduction" ]	B
sciq-7545	multiple_choice	Which nervous system consists of all the nervous tissue that lies outside the central nervous system?	[ "auxiliary nervous system", "function nervous system", "peripheral nervous system", "significant nervous system" ]	C
sciq-2068	multiple_choice	What do you call the zone in a body of water where there is too little sunlight for photosynthesis?	[ "observable zone", "semimetal zone", "Dark Zone", "aphotic zone" ]	D
sciq-8149	multiple_choice	What kind of cleavage do mammalian eggs exhibit?	[ "spicule", "holoblastic", "cocklebur", "Meroblastic" ]	B
sciq-8081	multiple_choice	Evolutionary adaptation is evidenced by different shapes of what structures in birds with different food preferences?	[ "Stomach", "beaks", "necks", "claws" ]	B

sciq-688

multiple_choice

Knees and elbows are examples of what part of the skeletal system?

[ "joints", "nerves", "muscles", "cartilage" ]

A

sciq-11372

multiple_choice

What happens to light when it reflects from a rough surface?

[ "gets diffused", "becomes isolated", "becomes concentrated", "reflects" ]

A

sciq-2165

multiple_choice

What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both?

[ "artificial", "devoid", "obscene", "opaque" ]

D

sciq-5628

multiple_choice

What refers to the development and nourishment of an embryo within the mother’s body but not inside an egg?

[ "adolescence", "birth", "vivipary", "ovulation" ]

C

sciq-6037

multiple_choice

Defined as a substance in foods and beverages that is essential to human survival, what term encompasses water, energy-yielding and body-building substances, and vitamins and minerals?

[ "nutrients", "calories", "molecules", "sustenance" ]

A

sciq-6100

multiple_choice

What process would be impossible without some variation in the inherited traits of organisms within a species?

[ "environmental selection", "natural selection", "characteristic selection", "darwin's selection" ]

B

ai2_arc-757

multiple_choice

The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s. Changes from the continental drift concept to the plate tectonics theory required which of the following?

[ "strong earthquakes occurring along fault zones", "data and ideas being shared among scientists", "a scientific law being passed by Congress", "teachers beginning to teach the newer theory" ]

B

sciq-4488

multiple_choice

What energy is the energy of motion?

[ "thermal", "optimal", "kinetic", "potential" ]

C

ai2_arc-525

multiple_choice

A student investigates how speed changes as a ball travels down a ramp. Measurements taken by computer every second are recorded on a data table. Which diagram will best display the data from this table?

[ "a bar graph", "a line graph", "a pie chart", "a pictograph" ]

B

sciq-5285

multiple_choice

Amino acids are joined together to form a chain at what molecular structure?

[ "ribosomes", "chloroplasts", "chromosomes", "DNA" ]

A

sciq-9066

multiple_choice

In arthropods, coxal glands and malphigian tubules perform what role?

[ "excretion", "ingestion", "photosynthesis", "reproduction" ]

A

ai2_arc-164

multiple_choice

Compared to the Sun, a red star most likely has a greater

[ "volume.", "rate of rotation.", "surface temperature.", "number of orbiting planets." ]

A

sciq-15

multiple_choice

Boron only occurs naturally in compounds with what element?

[ "oxygen", "helium", "carbon", "nitrogen" ]

A

scienceQA-1595

multiple_choice

What do these two changes have in common? crushing a mineral into powder mixing lettuce and salad dressing

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

A

Step 1: Think about each change. Crushing a mineral into powder is a physical change. The mineral breaks into tiny pieces. But it is still made of the same type of matter. Mixing lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different 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-4018

multiple_choice

Overproduction of offspring, combined with limited resources, results in what?

[ "concentration", "competition", "continuation", "contention" ]

B

sciq-10462

multiple_choice

What are unique about prokaryotic cells' organelles?

[ "no cell walls", "no epidermis", "not membrane-bound", "only membrane - bound" ]

C

sciq-7628

multiple_choice

What type of orbit do the planets make in the solar system?

[ "elliptical", "conical", "vertical", "figure eight" ]

A

sciq-8313

multiple_choice

Where does the process of digestion start?

[ "small intestine", "stomach", "esophagus", "mouth" ]

D

sciq-953

multiple_choice

Intensity is defined to be the power per unit area carried by a what?

[ "wave", "shift", "filament", "wire" ]

A

sciq-4152

multiple_choice

What is the only mechanism that consistently causes adaptive evolution?

[ "neutral selection", "genetic drift", "natural selection", "artificial selection" ]

C

sciq-4626

multiple_choice

What is the term for the measure of the force of gravity pulling down on an object?

[ "mass", "pressure", "density", "weight" ]

D

scienceQA-12218

multiple_choice

What do these two changes have in common? water evaporating from a lake baking cookies

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

D

Step 1: Think about each change. Water evaporating from a lake 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. Baking cookies is a chemical change. The type of matter in the cookie dough changes when it is baked. The cookie dough turns into cookies! Step 2: Look at each answer choice. Both are only physical changes. Water evaporating is a physical change. But baking cookies is not. Both are chemical changes. Baking cookies is a chemical change. But water evaporating from a lake is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.

ai2_arc-866

multiple_choice

Because water can hold a large amount of heat, which effect do oceans have on nearby land areas?

[ "They prevent rapid extreme temperature changes.", "They form high-pressure areas that cause magma currents.", "They provide the energy that triggers volcanic events.", "They lower the freezing point of fresh water." ]

A

sciq-11441

multiple_choice

In which phase do the sister chromatids separate?

[ "latent phase", "passivation", "prophase", "anaphase" ]

D

sciq-5150

multiple_choice

What is the name of the major sex hormone in females?

[ "glucose", "estrogen", "testosterone", "insulin" ]

B

sciq-2274

multiple_choice

What type of habitat do ferns need to grow?

[ "cold", "moist", "dry", "elevated" ]

B

sciq-660

multiple_choice

Bacterial stis can be cured with what?

[ "pesticides", "antioxidants", "antibiotics", "antiviral drugs" ]

C

sciq-6774

multiple_choice

What kinds of waves are composed of various oscillating electric and magnetic fields?

[ "elastic", "tidal", "electromagnetic", "seismic" ]

C

sciq-2527

multiple_choice

What is the measure of change in velocity of a moving object?

[ "acceleration", "kinetic energy", "vibration", "transmission" ]

A

sciq-8475

multiple_choice

What's the name for an atom that has gained or lost an electron?

[ "isotope", "neutrino", "an ion", "an photon" ]

C

sciq-9404

multiple_choice

What are known as the building blocks of proteins?

[ "organism acids", "protein acids", "amino acids", "bases" ]

C

sciq-3625

multiple_choice

What is used to measure current through a resistor?

[ "thermometers", "microscopes", "spectrographs", "ammeters" ]

D

sciq-4696

multiple_choice

Most motions in nature follow ________ rather than straight lines?

[ "vertical paths", "sharp paths", "curved paths", "horizontal paths" ]

C

sciq-6557

multiple_choice

Which organ in the body controls the amount of water loss in urine in response to maintaining homeostasis?

[ "kidneys", "liver", "spleen", "lungs" ]

A

sciq-4585

multiple_choice

Snails, scallops, and squids are what type of invertebrate?

[ "mollusk", "arthropod", "crustacean", "algae" ]

A

scienceQA-5941

multiple_choice

What do these two changes have in common? water evaporating from a lake building a tower out of magnetic blocks

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

D

Step 1: Think about each change. Water evaporating from a lake 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. Building a tower out of magnetic blocks is a physical change. The blocks stick to each other to form a tower. But the blocks are still made of the same type of matter as before. 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. Water evaporating is caused by heating. But building a tower out of magnetic blocks is not. Both are caused by cooling. Neither change is caused by cooling.

ai2_arc-305

multiple_choice

A student used the dimmest setting on a light microscope to observe a euglena and an amoeba. The student shined a narrow beam of light at the top of the cover slip. She observed that the euglena swam up toward the light but the amoeba did not. She knew the amoeba was alive because it slowly changed shape while she watched. What inference should the student draw from her observation?

[ "An amoeba can only move side to side.", "An amoeba is unable to respond to light.", "An amoeba moves too slowly to observe.", "An amoeba only moves when it is hungry." ]

B

sciq-98

multiple_choice

Millions of years ago, plants used energy from the sun to form what?

[ "carbon compounds", "evolution", "fossil fuels", "greenhouse gases" ]

A

sciq-8845

multiple_choice

Biomass is the mass of biological what?

[ "tissues", "lipids", "proteins", "organisms" ]

D

sciq-4648

multiple_choice

What is defined in physics as the amount of force pushing against a given area?

[ "pressure", "resistance", "energy", "gravity" ]

A

sciq-5004

multiple_choice

During the embryonic stage of vertebrates, the notochord develops into what?

[ "brain stem", "umbilical cord", "rib cage", "backbone" ]

D

sciq-372

multiple_choice

Both diffusion and effusion are related to the speed at which what objects move?

[ "solids", "electricity", "gas molecules", "copper molecules" ]

C

sciq-8589

multiple_choice

What kind of radiation can be used to disrupt the dna-rna protein synthesis cycle that allows bacteria to reproduce?

[ "infrared", "ionizing", "non-ionizing", "microwave" ]

B

sciq-1042

multiple_choice

The chemical behavior of elements can largely be explained by what?

[ "chemical configuration", "neutron configuration", "electron configurations", "proton configuration" ]

C

sciq-6316

multiple_choice

Most reptiles reproduce sexually and have what type of fertilization?

[ "mechanical", "external", "additional", "internal" ]

D

sciq-6428

multiple_choice

Lattice energy cannot be measured directly. what is its calculation based on?

[ "change in temperature", "microscopic inspection", "measured energy changes", "chemical reactions" ]

C

ai2_arc-266

multiple_choice

A student is trying to identify a mineral that has a nonmetallic luster and is black. It can also be scratched with a fingernail. According to the mineral reference sheet, the unidentified mineral is most likely

[ "mica.", "magnetite.", "hornblende.", "quartz." ]

A

sciq-9155

multiple_choice

Amino acids broken down by metabolic process are mostly recycled into new what?

[ "enzymes", "hormones", "lipids", "proteins" ]

D

sciq-4837

multiple_choice

What is the most common bacterial sti in the u. s.?

[ "diarrhea", "chlamydia", "influenza", "tuberculosis" ]

B

sciq-6504

multiple_choice

The hydration of what is what makes many alcohols?

[ "enzymes", "lipids", "alkenes", "malts" ]

C

sciq-7621

multiple_choice

What is the key to the demographic transition?

[ "higher expatriation", "higher birth rates", "reduced family size", "higher death rates" ]

C

sciq-11617

multiple_choice

What instrument has a resolution many times greater than a light microscope, and can be used to see the details on the outside of a cell?

[ "element microscope", "electron microscope", "complex microscope", "molecular microscope" ]

B

sciq-7254

multiple_choice

Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what?

[ "nucleus to neutrons", "electrons to neutrons", "protons to neutrons", "atoms to neutrons" ]

C

sciq-1435

multiple_choice

The most common two-lens telescope, like the simple microscope, uses lenses of what shape?

[ "convex", "concave", "angular", "cylindrical" ]

A

sciq-2606

multiple_choice

What in the axils of leaves and stems give rise to branches?

[ "axillary buds", "nodules", "chloroplasts", "meristems" ]

A

sciq-6872

multiple_choice

Unlike wild animals, what type of species are genetically uniform, making them more vulnerable to die-out from disease?

[ "mammals", "domestic species", "free-range species", "urbane species" ]

B

sciq-11070

multiple_choice

What type of muscle makes up most of the heart?

[ "heart muscle", "chest muscles", "cardiac muscle", "respiratory muscle" ]

C

sciq-850

multiple_choice

Defecating, urination, and even childbirth involve cooperation between the diaphragm and these?

[ "skeletal muscles", "heart muscles", "lung muscles", "abdominal muscles" ]

D

sciq-5082

multiple_choice

Noninfectious diseases can't be passed from one person to another. instead, these types of diseases are caused by factors such as environment, genetics and what?

[ "education", "age", "weight", "lifestyle" ]

D

sciq-5116

multiple_choice

Burning fossil fuels produces air pollution and what?

[ "carbon dioxide", "liquid dioxide", "oxygen", "acid rain" ]

A

sciq-1005

multiple_choice

What three characteristics do waves have?

[ "reflection, refraction and deflection", "spin, refraction, and deflection", "theory , refraction and deflection", "structure , refraction and deflection" ]

A

sciq-1263

multiple_choice

What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?

[ "endothermic", "ectothermic", "mimetic", "etheric" ]

B

scienceQA-3018

multiple_choice

Select the chemical formula for this molecule.

[ "P3C", "HPCl3", "PCl2", "PCl3" ]

D

P is the symbol for phosphorus. Cl is the symbol for chlorine. This ball-and-stick model shows a molecule with one phosphorus atom and three chlorine atoms. The chemical formula will contain the symbols P and Cl. There is one phosphorus atom, so P will not have a subscript. There are three chlorine atoms, so Cl will have a subscript of 3. The correct formula is PCl3. The diagram below shows how each part of the chemical formula matches with each part of the model above.

sciq-3624

multiple_choice

What term is used to describe the energy reserve carbohydrate of animals?

[ "lactose", "fructose", "glycogen", "sucrose" ]

C

sciq-6617

multiple_choice

Electrons are located at fixed distances from the nucleus, what are they called?

[ "energy levels", "Positive levels", "Energy layers", "energy concentrations" ]

A

sciq-8717

multiple_choice

What is the term for a structure within the cytoplasm that performs a specific job in the cell?

[ "ribosome", "organelle", "mitochondria", "nucleus" ]

B

sciq-7922

multiple_choice

Atoms of different elements can combine in simple whole number ratios to form what?

[ "chemical compounds", "mixtures", "carbon compounds", "combinations" ]

A

ai2_arc-129

multiple_choice

Which best describes two organ systems working together to help maintain homeostasis?

[ "The reproductive organs produce sex cells.", "The nerves carry signals from the eye to the brain.", "The bones and muscles of the hand work together to grip a pencil.", "The muscles of the chest tighten to push carbon dioxide out of the lungs." ]

D

sciq-704

multiple_choice

What is the thick fluid in the space between bones that cushions the joint?

[ "interstitial fluid", "amniotic fluid", "synovial fluid", "collagen" ]

C

sciq-2741

multiple_choice

What is the term for an amount of force pushing against a given area?

[ "force", "resistance", "mass", "pressure" ]

D

ai2_arc-236

multiple_choice

Which characteristic can a human offspring inherit?

[ "facial scar", "blue eyes", "long hair", "broken leg" ]

B

sciq-10228

multiple_choice

During what period on earth was coal formed?

[ "Mesozoic", "Neoproterozoic", "Neoproterozoic era", "the carboniferous period" ]

D

sciq-4939

multiple_choice

Maintaining a high metabolic rate takes a lot of what?

[ "hydrogen", "power", "energy", "fuel" ]

C

sciq-8972

multiple_choice

What do we call the recycling of inorganic matter between living organisms and their environment?

[ "phosphorus cycle", "water cycle", "biogeochemical cycle", "nutrient cycle" ]

C

sciq-4661

multiple_choice

Similarity in biochemicals, like the glucose used by virtually all living things for energy, provides evidence of what?

[ "gravity", "DNA", "variation", "evolution" ]

D

scienceQA-9960

multiple_choice

Select the animal.

[ "Hydrangea bushes can grow colorful flowers.", "Maple trees have star-shaped leaves.", "Snowy owls eat small animals.", "Rose bushes can grow colorful flowers." ]

C

A rose bush is a plant. It can grow colorful flowers. Most rose bushes have sharp thorns. The thorns help protect the rose bush from being eaten by animals. A snowy owl is an animal. It eats small animals. Snowy owls live in cold places. Snowy owls have feathers on their feet to protect them from the cold. A maple tree is a plant. It has star-shaped leaves. Maple trees have green leaves in the spring and summer. In the fall, their leaves turn yellow, red, or brown. A hydrangea bush is a plant. It can grow colorful flowers. Hydrangea bushes can have blue, white, purple, or pink flowers.

sciq-7988

multiple_choice

What is the name for substances with a ph above 7?

[ "bases", "nutrient", "protein", "acid" ]

A

scienceQA-4652

multiple_choice

How long is a raisin?

[ "12 meters", "12 kilometers", "12 millimeters", "12 centimeters" ]

C

The best estimate for the length of a raisin is 12 millimeters. 12 centimeters, 12 meters, and 12 kilometers are all too long.

sciq-8988

multiple_choice

Shrimp are an example of what group within the arthropods?

[ "myriapods", "scorpion", "crustaceans", "insect" ]

C

ai2_arc-838

multiple_choice

Which system has layers of smooth muscle tissue that contract to move solid and liquid nutrients and waste through the body?

[ "respiratory", "skeletal", "endocrine", "digestive" ]

D

sciq-1073

multiple_choice

The energy changes in what reactions are enormous compared with those of even the most energetic chemical reactions, and they result in a measurable change of mass?

[ "molecular reaction", "nuclear reactions", "methane combustion", "metabolic reaction" ]

B

sciq-9401

multiple_choice

What does parasitic mean?

[ "symbiotic", "welcome guest", "lives in host", "mutual benefit" ]

C

sciq-10118

multiple_choice

Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what?

[ "nanoparticles", "endocytosis", "modulators", "mitosis" ]

B

ai2_arc-80

multiple_choice

An ice cube placed in sunlight melts quickly. Which BEST explains this event?

[ "The Sun is far away.", "The Sun makes heat.", "The ice cube is a solid.", "The ice cube looks clear." ]

B

sciq-1602

multiple_choice

What parts of comets make them easy to see?

[ "craters and tails", "arcs and tails", "novas and tails", "comas and tails" ]

D

sciq-5509

multiple_choice

Carnivores are animals that eat other animals. the word carnivore is derived from latin and literally means this?

[ "amount eater", "meat eater", "thick eater", "leaf eater" ]

B

sciq-6114

multiple_choice

What is the name for the cooler, darker areas on the sun’s surface?

[ "anomalies", "sunspots", "corona", "aurora borealis" ]

B

sciq-7102

multiple_choice

What do decomposers release when they break down dead organisms?

[ "carbon dioxide", "nutrients", "methane", "acids" ]

B

sciq-5229

multiple_choice

A sperm cell and an egg cell fuse to become what?

[ "embryo", "unfertilized egg", "fertilized egg", "fetus" ]

C

sciq-9937

multiple_choice

What is the concentration of gas molecules in the mesosphere?

[ "medium density", "very low density", "low density", "high density" ]

B

sciq-9307

multiple_choice

Ponds and lakes are examples of what kind of biome?

[ "standing freshwater biome", "standing liquid biome", "standing marine biome", "standing lake biome" ]

A

sciq-2400

multiple_choice

The barrier defenses are not a response to infections, but they are continuously working to protect against a broad range of what?

[ "nutrients", "pathogens", "ecosystems", "mates" ]

B

sciq-219

multiple_choice

What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution?

[ "water", "turpentine", "liquid", "ammonia" ]

A

sciq-9271

multiple_choice

What are the two main types of diabetes?

[ "type 1, type 2", "type 0, 1", "type a, b", "type 3, 4" ]

A

sciq-4916

multiple_choice

The study of energy and energy transfer involving physical matter is what?

[ "geology", "thermodynamics", "nuclear energy", "biochemistry" ]

B

sciq-1405

multiple_choice

What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated?

[ "sterilization", "distillation", "dispersion", "conduction" ]

B

sciq-7545

multiple_choice

Which nervous system consists of all the nervous tissue that lies outside the central nervous system?

[ "auxiliary nervous system", "function nervous system", "peripheral nervous system", "significant nervous system" ]

C

sciq-2068

multiple_choice

What do you call the zone in a body of water where there is too little sunlight for photosynthesis?

[ "observable zone", "semimetal zone", "Dark Zone", "aphotic zone" ]

D

sciq-8149

multiple_choice

What kind of cleavage do mammalian eggs exhibit?

[ "spicule", "holoblastic", "cocklebur", "Meroblastic" ]

B

sciq-8081

multiple_choice

Evolutionary adaptation is evidenced by different shapes of what structures in birds with different food preferences?

[ "Stomach", "beaks", "necks", "claws" ]

B