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
scienceQA-7468	multiple_choice	Select the solid.	[ "milk", "water in a fishbowl", "rain puddle", "beans" ]	D	The water in a fishbowl is a liquid. A liquid takes the shape of any container it is in. If you pour water from a fishbowl into a different container, the water will take the shape of that container. But the water will still take up the same amount of space. Milk is a liquid. A liquid takes the shape of any container it is in. If you pour milk into a different container, the milk will take the shape of that container. But the milk will still take up the same amount of space. A rain puddle is a liquid. A liquid takes the shape of any container it is in. If you collect rainwater in a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space. A bean is a solid. A solid has a size and shape of its own. If you put many beans into a jar, the group of beans will take the shape of the jar, as a liquid would. But be careful! A bean is not a liquid. Each bean still has a size and shape of its own.
sciq-7757	multiple_choice	What do they call 2,2,4-trimethylpentane in the gasoline industry?	[ "isooctane", "xerophyte", "methane", "spirogyra" ]	A
sciq-11145	multiple_choice	Like acetic acid, pentanoic acid is what kind of acid?	[ "carbonic", "carboxylic", "hydroxyl", "amino" ]	B
ai2_arc-53	multiple_choice	A scientist put several different plants in a sealed container. Every hour, she checked the oxygen in the container to see if it changed. How did the oxygen in the container most likely change?	[ "The amount of oxygen increased.", "The amount of oxygen decreased.", "The oxygen was transformed into water.", "The oxygen was transformed into carbon dioxide." ]	A
sciq-3891	multiple_choice	What element is the sun mostly made up of?	[ "helium", "manganese", "mercury", "hydrogen" ]	D
sciq-8576	multiple_choice	What harmful substance must not be drained into s storm sewer?	[ "motor oil", "debris", "water runoff", "alcohol" ]	A
sciq-6378	multiple_choice	What system is responsible for defending your body against sickness?	[ "digestion system", "circulatory system", "immune system", "nervous system" ]	C
sciq-5081	multiple_choice	What is considered to be a unique feature of echinoderms?	[ "water vascular system", "air vascular system", "oil vascular system", "iron vascular system" ]	A
sciq-11002	multiple_choice	In binary fission how many times does a cell split?	[ "one", "four", "six", "two" ]	D
sciq-2069	multiple_choice	The sweat glands of the armpit are classified as these?	[ "mucus glands", "apocrine glands", "pineal glands", "adrenal glands" ]	B
sciq-11492	multiple_choice	What two things are used in optical instruments to reflect or refract light?	[ "orientations and lenses", "prisms and microscopes", "mirrors and magnifiers", "mirrors and lenses" ]	D
sciq-10738	multiple_choice	All eukaryotic cells have mitochondria, but not all eukaryotic cells have what?	[ "cytoplasm", "golgi bodies", "chloroplasts", "ribosomes" ]	C
ai2_arc-507	multiple_choice	An appliance manufacturer has redesigned its original electrical fan. It has made the new fan more energy efficient. This means that the new fan	[ "converts more electricity into heat.", "spins at a slower rate than the original fan.", "requires more electricity than the original fan.", "reduces the percentage of heat lost to the atmosphere." ]	D
sciq-8764	multiple_choice	What do you call reversible changes that do not change matter’s chemical makeup or chemical properties?	[ "chemical changes", "potential changes", "physical changes", "element changes" ]	C
scienceQA-4777	multiple_choice	What do these two changes have in common? rain forming in a cloud water boiling on a stove	[ "Both are caused by heating.", "Both are only physical changes.", "Both are caused by cooling.", "Both are chemical changes." ]	B	Step 1: Think about each change. Rain forming in a cloud is a change of state. So, it is a physical change. Water vapor in the air condenses into tiny droplets of liquid water. These droplets make up a cloud. When there is enough water in the air, the droplets will fall as rain. Water boiling on the stove 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. 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 boiling is caused by heating. But rain forming in a cloud is not. Both are caused by cooling. Rain begins to form when water vapor in the air becomes liquid water. This is caused by cooling. But water boiling is not.
ai2_arc-1037	multiple_choice	Which structure does a virus have in common with a prokaryotic cell?	[ "cell wall", "nucleic acid", "ribosome", "capsid" ]	B
sciq-308	multiple_choice	Most biochemical molecules are macromolecules, meaning that they are what?	[ "very abundant", "very dense", "very small", "very large" ]	D
sciq-11638	multiple_choice	What emerges from an insect egg?	[ "parasite", "larva", "fungi", "cocoon" ]	B
sciq-2117	multiple_choice	Which system transports oxygens to cells?	[ "nervous system", "circulatory system", "vascular system", "oxy system" ]	B
sciq-11290	multiple_choice	What are substances that the body needs for energy, building materials, and control of body processes?	[ "nutrients", "acids", "molecules", "carbons" ]	A
sciq-2154	multiple_choice	The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what?	[ "methane", "blood", "an alcohol", "yeast" ]	C
sciq-637	multiple_choice	What receives blood in the heart?	[ "chamber", "the atria", "the epidermis", "ventricle" ]	B
sciq-7742	multiple_choice	The release of an egg from an ovary, is part of what cycle?	[ "menstrual", "fetal", "life", "stomach" ]	A
sciq-711	multiple_choice	Which carbohydrates can be classified in terms of chain length?	[ "binary", "complex", "simple", "atomic" ]	C
sciq-11574	multiple_choice	What is one major cause of skin cancer?	[ "ultraviolet light", "visible light", "infrared light", "sunscreen" ]	A
sciq-3989	multiple_choice	Not all structural rearrangements of chromosomes produce nonviable, impaired, or infertile individuals. in rare instances, such a change can result in the evolution of what?	[ "new species", "new family", "new mutation", "new order" ]	A
sciq-4968	multiple_choice	In the cellular process of transcription, dna code is converted into what other kind of code?	[ "fna", "rna", "dpa", "sna" ]	B
sciq-10657	multiple_choice	What fluid becomes less viscous, allowing for better joint function after stretching?	[ "cranial", "vertebral", "proximal", "synovial" ]	D
sciq-8083	multiple_choice	What is an alloy of both tin and copper?	[ "Aluminium", "silver", "bronze", "Cobalt" ]	C
sciq-7810	multiple_choice	Hemoglobin, with four polypeptide chains or subunits, is the most frequently cited example of a protein having what kind of structure?	[ "binary", "quaternary", "ternary", "unary" ]	B
sciq-5422	multiple_choice	In most animals, the circulatory system is used to transport blood through the what?	[ "stratum corneum", "fur", "nerves", "body" ]	D
sciq-5424	multiple_choice	At transform plate boundaries, two plates move in which directions?	[ "parallel", "same", "north and south", "opposite" ]	D
sciq-8842	multiple_choice	What kind of islands provide natural protection to shorelines?	[ "edge islands", "locational islands", "patch islands", "barrier islands" ]	D
sciq-2884	multiple_choice	Water is an oxide of what element?	[ "helium", "hydrogen", "nitrogen", "carbon" ]	B
sciq-2778	multiple_choice	Air conditioning systems can incubate certain bacteria and what else?	[ "Cancer", "root", "mold", "wood" ]	C
sciq-3234	multiple_choice	Where do most skin structures originate in?	[ "hypodermis", "cuticle", "dermis", "epidermis" ]	C
sciq-11039	multiple_choice	What are the three most common protective devices?	[ "fuses , fabrication breaks & surge protectors", "fuses , circuit breaks & surge claws", "tranistors, resistors & diodes", "fuses, circuit breaks & surge protectors" ]	D
sciq-8777	multiple_choice	Class bivalvia (“two shells”) includes clams, oysters, mussels, scallops, and these?	[ "geoducks", "grendels", "crabs", "octopuss" ]	A
scienceQA-6639	multiple_choice	Select the animal.	[ "Oak trees can have thick branches.", "Cherry trees can grow white or pink flowers.", "Yellow jackets drink nectar and fruit.", "Daffodils have a green stem." ]	C	An oak tree is a plant. It can have thick branches. Acorns grow on oak trees. Acorns are small nuts with a seed inside. A yellow jacket is an animal. It drinks nectar and eats fruit. A yellow jacket is an insect. Yellow jackets have two wings. A cherry tree is a plant. It can grow white or pink flowers. Many types of cherry trees come from Japan. Some of these trees have flowers, but no cherries! A daffodil is a plant. It has a green stem. Most daffodil plants grow a single flower.
sciq-2950	multiple_choice	Stirring, surface area, and temperature affect the rate at which what occurs?	[ "solute freezes", "solute dissolves", "concentration dissolves", "solute fragments" ]	B
sciq-5821	multiple_choice	What makes a complete orbit around the earth once every 29 1/2 days?	[ "Mars", "the Sun", "the moon", "Gemini" ]	C
ai2_arc-938	multiple_choice	It takes approximately 365 days for	[ "the Sun to orbit around Earth.", "the Moon to orbit around Earth.", "Earth to orbit around the Sun.", "Earth to orbit around the Moon." ]	C
sciq-4619	multiple_choice	What are the only living organisms that can make their own food?	[ "animals", "bacteria", "plants", "protozoa" ]	C
sciq-11007	multiple_choice	Like sharks, nearly the entire human skeleton during a specific pre-birth developmental stage is made of what connective tissue?	[ "chloroplasm", "cartilage", "collagen", "phloem" ]	B
sciq-7064	multiple_choice	Veins are blood vessels that carry blood toward what?	[ "extremities", "lung", "brain", "heart" ]	D
sciq-8437	multiple_choice	The normal respiratory rate per minute in adult humans is?	[ "0-6 breaths", "18-24 breaths", "6-12 breaths", "12-18 breaths" ]	D
sciq-3629	multiple_choice	What organism captures light energy and converts it to chemical energy inside its cell?	[ "autotrophs", "plants", "phototrophs", "insects" ]	C
sciq-7016	multiple_choice	Carbon dioxide does not rise like other gases because it has a density greater than what?	[ "gravity", "air", "light", "water" ]	B
sciq-860	multiple_choice	What is making measurements that are close to the true value known as?	[ "accuracy", "prediction", "frequency", "estimation" ]	A
sciq-7156	multiple_choice	What is the lightest molecule?	[ "oxygen", "hydrogen", "silicon", "helium" ]	B
sciq-239	multiple_choice	The denser regions of the electron cloud are called what?	[ "lattices", "orbitals", "cores", "isotopes" ]	B
scienceQA-799	multiple_choice	Select the reptile.	[ "Japanese tree frog", "fruit bat", "eagle ray", "salt water crocodile" ]	D	A fruit bat is a mammal. It has hair and feeds its young milk. Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins. A Japanese tree frog is an amphibian. It has moist skin and begins its life in water. There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches. An eagle ray is a fish. It lives underwater. It has fins, not limbs. Rays have a different shape than many other fish. Rays are large and flat. They have wide, triangle-shaped fins that help them swim long distances. A salt water crocodile is a reptile. It has scaly, waterproof skin. Crocodiles hunt their prey in or near water.
sciq-4951	multiple_choice	What needs to happen to temperature to cause pressure to increase dramatically?	[ "small increase", "large increase", "boiling point", "no increase" ]	B
sciq-9889	multiple_choice	Where is the most significant connection between the cerebellum and the rest of the brain?	[ "at the pons", "at the cerebrum", "at the medulla oblongata", "at the meninges" ]	A
ai2_arc-132	multiple_choice	Which best determines the health of a lake used as a source of freshwater?	[ "its depth and width", "its temperature and pH", "its location and depth", "its temperature and depth" ]	B
sciq-3692	multiple_choice	In response to changing environmental conditions, prokaryotic populations can undergo what process in short periods of time?	[ "fusion", "evolution", "reproduction", "extinction" ]	B
sciq-6424	multiple_choice	Varicella zoster virus causes what two illnesses?	[ "flu and shingles", "syphilis and lyme", "german measles and flu", "chicken pox and shingles" ]	D
sciq-11605	multiple_choice	Although fewer in number than chemical synapses, what type of synapses are found in all nervous systems and play important and unique roles?	[ "dual synapses", "beginning synapses", "duplicating synapses", "electrical synapses" ]	D
sciq-5874	multiple_choice	Pigments are substances that absorb what?	[ "artificial light", "visible light", "synthetic light", "natural light" ]	B
sciq-7492	multiple_choice	Electrophiles have a strong tendency to react with what?	[ "acids", "nucleophiles", "resistors", "neutrons" ]	B
sciq-10614	multiple_choice	What property is associated with the number of reactant molecules involved in an elementary step?	[ "pollenation", "kilocalorie", "molecularity", "Molecules" ]	C
sciq-11169	multiple_choice	What do you call scientists that study the weather, specifically?	[ "geologists", "hydrologists", "forecasters", "meteorologists" ]	D
sciq-4826	multiple_choice	In eukaryotes, mrna may be modified before leaving what?	[ "ribosome", "epidermis", "nucleus", "mitochondria" ]	C
sciq-7570	multiple_choice	What is the method of reproduction for echinoderms?	[ "external fertilization", "fragmentation", "pollination", "internal fertilization" ]	A
sciq-7318	multiple_choice	The anion is the methanoate ion, which is commonly called the what?	[ "glutathione ion", "isomer", "metabolized ion", "formate ion" ]	D
ai2_arc-695	multiple_choice	Daffodils are plants that can perform both asexual and sexual reproduction. How does a daffodil population benefit more by reproducing sexually than asexually?	[ "It can reproduce more rapidly.", "It can adapt faster to its environment.", "It can increase the diversity of inherited traits.", "It can eliminate unfavorable traits from the gene pool." ]	C
sciq-11043	multiple_choice	Joules and calories are the units of what?	[ "weight and energy", "energy and heat", "mass and potential", "heat and velocity" ]	B
scienceQA-7376	multiple_choice	How long is a basketball court?	[ "24 kilometers", "24 meters", "24 millimeters", "24 centimeters" ]	B	The best estimate for the length of a basketball court is 24 meters. 24 millimeters and 24 centimeters are too short. 24 kilometers is too long.
sciq-2525	multiple_choice	What allows theories to be widely accepted?	[ "observation", "hypothesis", "theory", "evidence" ]	D
sciq-8300	multiple_choice	What type of activity in the brain causes epilepsy?	[ "toxic overload", "abnormal electrical activity", "hormone imbalance", "bleeding" ]	B
ai2_arc-310	multiple_choice	Which statement best describes a liquid sample?	[ "It will retain its volume if transferred to a larger container.", "It keeps its shape when transferred to a larger container.", "Its volume can be greatly reduced by adding pressure.", "Its shape can be changed by increasing its temperature." ]	A
sciq-8420	multiple_choice	What is the term for the number of waves that pass a fixed point in a given amount of time?	[ "wave speed", "wave velocity", "wave distance", "wave frequency" ]	D
scienceQA-11049	multiple_choice	Select the amphibian below.	[ "fruit bat", "fire salamander", "box turtle", "gharial" ]	B	A fire salamander is an amphibian. It has moist skin and begins its life in water. Fire salamanders can release poison from their skin. This poison helps protect them from predators. A gharial is a reptile. It has scaly, waterproof skin. Gharials are a type of crocodile. Gharials live near rivers and eat fish. A box turtle is a reptile. It has scaly, waterproof skin. Box turtles can live to be over 100 years old! A fruit bat is a mammal. It has hair and feeds its young milk. Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins.
sciq-2627	multiple_choice	The properties of liquids are intermediate between those of gases and solids but are more similar to?	[ "gases", "solids", "oils", "plasma" ]	B
sciq-2705	multiple_choice	What process converts the sun's hydrogen nuclei into helium?	[ "solar fission", "nuclear fission", "nuclear fusion", "combustion" ]	C
sciq-5418	multiple_choice	Tropical rainforests are an example of a climate that occurs near what?	[ "poles", "deserts", "equator", "tundras" ]	C
scienceQA-11290	multiple_choice	Select the reptile.	[ "green sea turtle", "salmon", "green tree frog", "anchovy" ]	A	A green sea turtle is a reptile. It has scaly, waterproof skin. Sea turtles live in the water, but they lay their eggs on land. A salmon is a fish. It lives underwater. It has fins, not limbs. Unlike most other fish, salmon can live in both fresh water and salt water. An anchovy is a fish. It lives underwater. It has fins, not limbs. An anchovy is a small fish that lives in the ocean. Like some other types of fish, anchovies swim in large groups called schools. A green tree frog is an amphibian. It has moist skin and begins its life in water. There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches.
sciq-11606	multiple_choice	What consists of a nitrogen atom bonded to some combination of carbons and hydrogens?	[ "an alkali", "a chloride", "an amine", "a metalloid" ]	C
ai2_arc-133	multiple_choice	How has burning fossil fuels most caused a decline to the quality of air that people breathe?	[ "by adding particle pollution", "by creating a hole in the ozone layer", "by causing acid precipitation to fall", "by increasing the levels of carbon dioxide" ]	A
sciq-8915	multiple_choice	What helps regulate the production of urine?	[ "the fetal gland", "the pituitary gland", "the temporal gland", "the discrete gland" ]	B
sciq-6529	multiple_choice	What bone cell is responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum?	[ "epithelial", "fibroblasts", "osteoblast", "congenial" ]	C
sciq-847	multiple_choice	In physics, work means the use of what to move an object?	[ "force", "energy", "mass", "leverage" ]	A
sciq-6913	multiple_choice	What are the two loops of blood flow in the cardiovascular system?	[ "pulmonary and systemic", "aerobic and anaerobic", "systolic and diastolic", "anabolic and metabolic" ]	A
sciq-625	multiple_choice	What is the movement of fluid out of the capillaries called?	[ "absorption", "diffusion", "filtration", "osmosis" ]	C
sciq-3667	multiple_choice	Are thunderstorms more likely where the ground temperatures are extremely high or extremely low?	[ "somewhat low", "extremely low", "extremely high", "somewhat high" ]	C
sciq-382	multiple_choice	Pressure, volume, and temperature are related by which law?	[ "law of inertia", "gas law", "Law of Conservation", "Murphy's Law" ]	B
sciq-648	multiple_choice	Astronomers have wondered if the universe is expanding fast enough to escape the pull of what?	[ "gravity", "Coreolis effect", "light", "kinetic energy" ]	A
sciq-4710	multiple_choice	Some terrestrial species breathe through their skin and oral cavity because they lack what?	[ "lungs", "windpipe", "mouth", "nose" ]	A
sciq-9282	multiple_choice	What is the region known as the myelencephalon in the embryonic brain?	[ "medulla", "Mesencephalon", "Diencephalon", "Telencephalon" ]	A
sciq-7374	multiple_choice	Making a specific statement based on a general principle is the definition of what type of reasoning?	[ "deductive", "transitive", "inference", "inductive" ]	A
sciq-2927	multiple_choice	What type of earthquake has a shallow focus because the plates meet near the surface?	[ "transform fault", "divergent boundary", "tectonic", "gas giant" ]	A
sciq-4208	multiple_choice	What term describes the process where organisms convert atmospheric nitrogen into biologically useful chemicals?	[ "carbon cycle", "photosynthesis", "cellular respiration", "nitrogen fixation" ]	D
sciq-3872	multiple_choice	What type of plants supplement their mineral nutrition by digesting animals?	[ "herbivorous", "perennials", "carnivorous", "annuals" ]	C
sciq-6553	multiple_choice	What is the study of matter and energy referred to as?	[ "geology", "physical science", "cosmology", "biology" ]	B
sciq-9738	multiple_choice	What is capable of altering the rate of time passing?	[ "strong gravitational fields", "strong magnetic fields", "strong planetary fields", "weak gravitational fields" ]	A
sciq-6014	multiple_choice	Cerebral palsy is a disease caused by injury to what organ as it is developing?	[ "skin", "heart", "brain", "liver" ]	C
sciq-2471	multiple_choice	Lipids are available to the body from how many sources?	[ "one", "three", "two", "five" ]	B
sciq-7400	multiple_choice	The remainder is transferred by contraction of what before the ventricles begin to contract?	[ "the atria", "the stomach", "the arteries", "the large intestine" ]	A
scienceQA-432	multiple_choice	What do these two changes have in common? butter melting on a hot day baking a loaf of bread	[ "Both are caused by cooling.", "Both are only physical changes.", "Both are caused by heating.", "Both are chemical changes." ]	C	Step 1: Think about each change. Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but it is still made of the same type of matter. Baking a loaf of bread is a chemical change. The type of matter in the dough changes when it is baked. The dough turns into bread! Step 2: Look at each answer choice. Both are only physical changes. Butter melting on a hot day is a physical change. But baking bread is not. Both are chemical changes. Baking bread is a chemical change. But butter melting on a hot day is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-1665	multiple_choice	The measure of a substances entropy at 25 degrees celsius is known as it's?	[ "standard entropy", "new entropy", "limited entropy", "specific entropy" ]	A

scienceQA-7468

multiple_choice

Select the solid.

[ "milk", "water in a fishbowl", "rain puddle", "beans" ]

D

The water in a fishbowl is a liquid. A liquid takes the shape of any container it is in. If you pour water from a fishbowl into a different container, the water will take the shape of that container. But the water will still take up the same amount of space. Milk is a liquid. A liquid takes the shape of any container it is in. If you pour milk into a different container, the milk will take the shape of that container. But the milk will still take up the same amount of space. A rain puddle is a liquid. A liquid takes the shape of any container it is in. If you collect rainwater in a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space. A bean is a solid. A solid has a size and shape of its own. If you put many beans into a jar, the group of beans will take the shape of the jar, as a liquid would. But be careful! A bean is not a liquid. Each bean still has a size and shape of its own.

sciq-7757

multiple_choice

What do they call 2,2,4-trimethylpentane in the gasoline industry?

[ "isooctane", "xerophyte", "methane", "spirogyra" ]

A

sciq-11145

multiple_choice

Like acetic acid, pentanoic acid is what kind of acid?

[ "carbonic", "carboxylic", "hydroxyl", "amino" ]

B

ai2_arc-53

multiple_choice

A scientist put several different plants in a sealed container. Every hour, she checked the oxygen in the container to see if it changed. How did the oxygen in the container most likely change?

[ "The amount of oxygen increased.", "The amount of oxygen decreased.", "The oxygen was transformed into water.", "The oxygen was transformed into carbon dioxide." ]

A

sciq-3891

multiple_choice

What element is the sun mostly made up of?

[ "helium", "manganese", "mercury", "hydrogen" ]

D

sciq-8576

multiple_choice

What harmful substance must not be drained into s storm sewer?

[ "motor oil", "debris", "water runoff", "alcohol" ]

A

sciq-6378

multiple_choice

What system is responsible for defending your body against sickness?

[ "digestion system", "circulatory system", "immune system", "nervous system" ]

C

sciq-5081

multiple_choice

What is considered to be a unique feature of echinoderms?

[ "water vascular system", "air vascular system", "oil vascular system", "iron vascular system" ]

A

sciq-11002

multiple_choice

In binary fission how many times does a cell split?

[ "one", "four", "six", "two" ]

D

sciq-2069

multiple_choice

The sweat glands of the armpit are classified as these?

[ "mucus glands", "apocrine glands", "pineal glands", "adrenal glands" ]

B

sciq-11492

multiple_choice

What two things are used in optical instruments to reflect or refract light?

[ "orientations and lenses", "prisms and microscopes", "mirrors and magnifiers", "mirrors and lenses" ]

D

sciq-10738

multiple_choice

All eukaryotic cells have mitochondria, but not all eukaryotic cells have what?

[ "cytoplasm", "golgi bodies", "chloroplasts", "ribosomes" ]

C

ai2_arc-507

multiple_choice

An appliance manufacturer has redesigned its original electrical fan. It has made the new fan more energy efficient. This means that the new fan

[ "converts more electricity into heat.", "spins at a slower rate than the original fan.", "requires more electricity than the original fan.", "reduces the percentage of heat lost to the atmosphere." ]

D

sciq-8764

multiple_choice

What do you call reversible changes that do not change matter’s chemical makeup or chemical properties?

[ "chemical changes", "potential changes", "physical changes", "element changes" ]

C

scienceQA-4777

multiple_choice

What do these two changes have in common? rain forming in a cloud water boiling on a stove

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

B

Step 1: Think about each change. Rain forming in a cloud is a change of state. So, it is a physical change. Water vapor in the air condenses into tiny droplets of liquid water. These droplets make up a cloud. When there is enough water in the air, the droplets will fall as rain. Water boiling on the stove 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. 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 boiling is caused by heating. But rain forming in a cloud is not. Both are caused by cooling. Rain begins to form when water vapor in the air becomes liquid water. This is caused by cooling. But water boiling is not.

ai2_arc-1037

multiple_choice

Which structure does a virus have in common with a prokaryotic cell?

[ "cell wall", "nucleic acid", "ribosome", "capsid" ]

B

sciq-308

multiple_choice

Most biochemical molecules are macromolecules, meaning that they are what?

[ "very abundant", "very dense", "very small", "very large" ]

D

sciq-11638

multiple_choice

What emerges from an insect egg?

[ "parasite", "larva", "fungi", "cocoon" ]

B

sciq-2117

multiple_choice

Which system transports oxygens to cells?

[ "nervous system", "circulatory system", "vascular system", "oxy system" ]

B

sciq-11290

multiple_choice

What are substances that the body needs for energy, building materials, and control of body processes?

[ "nutrients", "acids", "molecules", "carbons" ]

A

sciq-2154

multiple_choice

The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what?

[ "methane", "blood", "an alcohol", "yeast" ]

C

sciq-637

multiple_choice

What receives blood in the heart?

[ "chamber", "the atria", "the epidermis", "ventricle" ]

B

sciq-7742

multiple_choice

The release of an egg from an ovary, is part of what cycle?

[ "menstrual", "fetal", "life", "stomach" ]

A

sciq-711

multiple_choice

Which carbohydrates can be classified in terms of chain length?

[ "binary", "complex", "simple", "atomic" ]

C

sciq-11574

multiple_choice

What is one major cause of skin cancer?

[ "ultraviolet light", "visible light", "infrared light", "sunscreen" ]

A

sciq-3989

multiple_choice

Not all structural rearrangements of chromosomes produce nonviable, impaired, or infertile individuals. in rare instances, such a change can result in the evolution of what?

[ "new species", "new family", "new mutation", "new order" ]

A

sciq-4968

multiple_choice

In the cellular process of transcription, dna code is converted into what other kind of code?

[ "fna", "rna", "dpa", "sna" ]

B

sciq-10657

multiple_choice

What fluid becomes less viscous, allowing for better joint function after stretching?

[ "cranial", "vertebral", "proximal", "synovial" ]

D

sciq-8083

multiple_choice

What is an alloy of both tin and copper?

[ "Aluminium", "silver", "bronze", "Cobalt" ]

C

sciq-7810

multiple_choice

Hemoglobin, with four polypeptide chains or subunits, is the most frequently cited example of a protein having what kind of structure?

[ "binary", "quaternary", "ternary", "unary" ]

B

sciq-5422

multiple_choice

In most animals, the circulatory system is used to transport blood through the what?

[ "stratum corneum", "fur", "nerves", "body" ]

D

sciq-5424

multiple_choice

At transform plate boundaries, two plates move in which directions?

[ "parallel", "same", "north and south", "opposite" ]

D

sciq-8842

multiple_choice

What kind of islands provide natural protection to shorelines?

[ "edge islands", "locational islands", "patch islands", "barrier islands" ]

D

sciq-2884

multiple_choice

Water is an oxide of what element?

[ "helium", "hydrogen", "nitrogen", "carbon" ]

B

sciq-2778

multiple_choice

Air conditioning systems can incubate certain bacteria and what else?

[ "Cancer", "root", "mold", "wood" ]

C

sciq-3234

multiple_choice

Where do most skin structures originate in?

[ "hypodermis", "cuticle", "dermis", "epidermis" ]

C

sciq-11039

multiple_choice

What are the three most common protective devices?

[ "fuses , fabrication breaks & surge protectors", "fuses , circuit breaks & surge claws", "tranistors, resistors & diodes", "fuses, circuit breaks & surge protectors" ]

D

sciq-8777

multiple_choice

Class bivalvia (“two shells”) includes clams, oysters, mussels, scallops, and these?

[ "geoducks", "grendels", "crabs", "octopuss" ]

A

scienceQA-6639

multiple_choice

Select the animal.

[ "Oak trees can have thick branches.", "Cherry trees can grow white or pink flowers.", "Yellow jackets drink nectar and fruit.", "Daffodils have a green stem." ]

C

An oak tree is a plant. It can have thick branches. Acorns grow on oak trees. Acorns are small nuts with a seed inside. A yellow jacket is an animal. It drinks nectar and eats fruit. A yellow jacket is an insect. Yellow jackets have two wings. A cherry tree is a plant. It can grow white or pink flowers. Many types of cherry trees come from Japan. Some of these trees have flowers, but no cherries! A daffodil is a plant. It has a green stem. Most daffodil plants grow a single flower.

sciq-2950

multiple_choice

Stirring, surface area, and temperature affect the rate at which what occurs?

[ "solute freezes", "solute dissolves", "concentration dissolves", "solute fragments" ]

B

sciq-5821

multiple_choice

What makes a complete orbit around the earth once every 29 1/2 days?

[ "Mars", "the Sun", "the moon", "Gemini" ]

C

ai2_arc-938

multiple_choice

It takes approximately 365 days for

[ "the Sun to orbit around Earth.", "the Moon to orbit around Earth.", "Earth to orbit around the Sun.", "Earth to orbit around the Moon." ]

C

sciq-4619

multiple_choice

What are the only living organisms that can make their own food?

[ "animals", "bacteria", "plants", "protozoa" ]

C

sciq-11007

multiple_choice

Like sharks, nearly the entire human skeleton during a specific pre-birth developmental stage is made of what connective tissue?

[ "chloroplasm", "cartilage", "collagen", "phloem" ]

B

sciq-7064

multiple_choice

Veins are blood vessels that carry blood toward what?

[ "extremities", "lung", "brain", "heart" ]

D

sciq-8437

multiple_choice

The normal respiratory rate per minute in adult humans is?

[ "0-6 breaths", "18-24 breaths", "6-12 breaths", "12-18 breaths" ]

D

sciq-3629

multiple_choice

What organism captures light energy and converts it to chemical energy inside its cell?

[ "autotrophs", "plants", "phototrophs", "insects" ]

C

sciq-7016

multiple_choice

Carbon dioxide does not rise like other gases because it has a density greater than what?

[ "gravity", "air", "light", "water" ]

B

sciq-860

multiple_choice

What is making measurements that are close to the true value known as?

[ "accuracy", "prediction", "frequency", "estimation" ]

A

sciq-7156

multiple_choice

What is the lightest molecule?

[ "oxygen", "hydrogen", "silicon", "helium" ]

B

sciq-239

multiple_choice

The denser regions of the electron cloud are called what?

[ "lattices", "orbitals", "cores", "isotopes" ]

B

scienceQA-799

multiple_choice

Select the reptile.

[ "Japanese tree frog", "fruit bat", "eagle ray", "salt water crocodile" ]

D

A fruit bat is a mammal. It has hair and feeds its young milk. Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins. A Japanese tree frog is an amphibian. It has moist skin and begins its life in water. There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches. An eagle ray is a fish. It lives underwater. It has fins, not limbs. Rays have a different shape than many other fish. Rays are large and flat. They have wide, triangle-shaped fins that help them swim long distances. A salt water crocodile is a reptile. It has scaly, waterproof skin. Crocodiles hunt their prey in or near water.

sciq-4951

multiple_choice

What needs to happen to temperature to cause pressure to increase dramatically?

[ "small increase", "large increase", "boiling point", "no increase" ]

B

sciq-9889

multiple_choice

Where is the most significant connection between the cerebellum and the rest of the brain?

[ "at the pons", "at the cerebrum", "at the medulla oblongata", "at the meninges" ]

A

ai2_arc-132

multiple_choice

Which best determines the health of a lake used as a source of freshwater?

[ "its depth and width", "its temperature and pH", "its location and depth", "its temperature and depth" ]

B

sciq-3692

multiple_choice

In response to changing environmental conditions, prokaryotic populations can undergo what process in short periods of time?

[ "fusion", "evolution", "reproduction", "extinction" ]

B

sciq-6424

multiple_choice

Varicella zoster virus causes what two illnesses?

[ "flu and shingles", "syphilis and lyme", "german measles and flu", "chicken pox and shingles" ]

D

sciq-11605

multiple_choice

Although fewer in number than chemical synapses, what type of synapses are found in all nervous systems and play important and unique roles?

[ "dual synapses", "beginning synapses", "duplicating synapses", "electrical synapses" ]

D

sciq-5874

multiple_choice

Pigments are substances that absorb what?

[ "artificial light", "visible light", "synthetic light", "natural light" ]

B

sciq-7492

multiple_choice

Electrophiles have a strong tendency to react with what?

[ "acids", "nucleophiles", "resistors", "neutrons" ]

B

sciq-10614

multiple_choice

What property is associated with the number of reactant molecules involved in an elementary step?

[ "pollenation", "kilocalorie", "molecularity", "Molecules" ]

C

sciq-11169

multiple_choice

What do you call scientists that study the weather, specifically?

[ "geologists", "hydrologists", "forecasters", "meteorologists" ]

D

sciq-4826

multiple_choice

In eukaryotes, mrna may be modified before leaving what?

[ "ribosome", "epidermis", "nucleus", "mitochondria" ]

C

sciq-7570

multiple_choice

What is the method of reproduction for echinoderms?

[ "external fertilization", "fragmentation", "pollination", "internal fertilization" ]

A

sciq-7318

multiple_choice

The anion is the methanoate ion, which is commonly called the what?

[ "glutathione ion", "isomer", "metabolized ion", "formate ion" ]

D

ai2_arc-695

multiple_choice

Daffodils are plants that can perform both asexual and sexual reproduction. How does a daffodil population benefit more by reproducing sexually than asexually?

[ "It can reproduce more rapidly.", "It can adapt faster to its environment.", "It can increase the diversity of inherited traits.", "It can eliminate unfavorable traits from the gene pool." ]

C

sciq-11043

multiple_choice

Joules and calories are the units of what?

[ "weight and energy", "energy and heat", "mass and potential", "heat and velocity" ]

B

scienceQA-7376

multiple_choice

How long is a basketball court?

[ "24 kilometers", "24 meters", "24 millimeters", "24 centimeters" ]

B

The best estimate for the length of a basketball court is 24 meters. 24 millimeters and 24 centimeters are too short. 24 kilometers is too long.

sciq-2525

multiple_choice

What allows theories to be widely accepted?

[ "observation", "hypothesis", "theory", "evidence" ]

D

sciq-8300

multiple_choice

What type of activity in the brain causes epilepsy?

[ "toxic overload", "abnormal electrical activity", "hormone imbalance", "bleeding" ]

B

ai2_arc-310

multiple_choice

Which statement best describes a liquid sample?

[ "It will retain its volume if transferred to a larger container.", "It keeps its shape when transferred to a larger container.", "Its volume can be greatly reduced by adding pressure.", "Its shape can be changed by increasing its temperature." ]

A

sciq-8420

multiple_choice

What is the term for the number of waves that pass a fixed point in a given amount of time?

[ "wave speed", "wave velocity", "wave distance", "wave frequency" ]

D

scienceQA-11049

multiple_choice

Select the amphibian below.

[ "fruit bat", "fire salamander", "box turtle", "gharial" ]

B

A fire salamander is an amphibian. It has moist skin and begins its life in water. Fire salamanders can release poison from their skin. This poison helps protect them from predators. A gharial is a reptile. It has scaly, waterproof skin. Gharials are a type of crocodile. Gharials live near rivers and eat fish. A box turtle is a reptile. It has scaly, waterproof skin. Box turtles can live to be over 100 years old! A fruit bat is a mammal. It has hair and feeds its young milk. Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins.

sciq-2627

multiple_choice

The properties of liquids are intermediate between those of gases and solids but are more similar to?

[ "gases", "solids", "oils", "plasma" ]

B

sciq-2705

multiple_choice

What process converts the sun's hydrogen nuclei into helium?

[ "solar fission", "nuclear fission", "nuclear fusion", "combustion" ]

C

sciq-5418

multiple_choice

Tropical rainforests are an example of a climate that occurs near what?

[ "poles", "deserts", "equator", "tundras" ]

C

scienceQA-11290

multiple_choice

Select the reptile.

[ "green sea turtle", "salmon", "green tree frog", "anchovy" ]

A

A green sea turtle is a reptile. It has scaly, waterproof skin. Sea turtles live in the water, but they lay their eggs on land. A salmon is a fish. It lives underwater. It has fins, not limbs. Unlike most other fish, salmon can live in both fresh water and salt water. An anchovy is a fish. It lives underwater. It has fins, not limbs. An anchovy is a small fish that lives in the ocean. Like some other types of fish, anchovies swim in large groups called schools. A green tree frog is an amphibian. It has moist skin and begins its life in water. There are many kinds of tree frogs. Most tree frogs are very small. They can walk on thin branches.

sciq-11606

multiple_choice

What consists of a nitrogen atom bonded to some combination of carbons and hydrogens?

[ "an alkali", "a chloride", "an amine", "a metalloid" ]

C

ai2_arc-133

multiple_choice

How has burning fossil fuels most caused a decline to the quality of air that people breathe?

[ "by adding particle pollution", "by creating a hole in the ozone layer", "by causing acid precipitation to fall", "by increasing the levels of carbon dioxide" ]

A

sciq-8915

multiple_choice

What helps regulate the production of urine?

[ "the fetal gland", "the pituitary gland", "the temporal gland", "the discrete gland" ]

B

sciq-6529

multiple_choice

What bone cell is responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum?

[ "epithelial", "fibroblasts", "osteoblast", "congenial" ]

C

sciq-847

multiple_choice

In physics, work means the use of what to move an object?

[ "force", "energy", "mass", "leverage" ]

A

sciq-6913

multiple_choice

What are the two loops of blood flow in the cardiovascular system?

[ "pulmonary and systemic", "aerobic and anaerobic", "systolic and diastolic", "anabolic and metabolic" ]

A

sciq-625

multiple_choice

What is the movement of fluid out of the capillaries called?

[ "absorption", "diffusion", "filtration", "osmosis" ]

C

sciq-3667

multiple_choice

Are thunderstorms more likely where the ground temperatures are extremely high or extremely low?

[ "somewhat low", "extremely low", "extremely high", "somewhat high" ]

C

sciq-382

multiple_choice

Pressure, volume, and temperature are related by which law?

[ "law of inertia", "gas law", "Law of Conservation", "Murphy's Law" ]

B

sciq-648

multiple_choice

Astronomers have wondered if the universe is expanding fast enough to escape the pull of what?

[ "gravity", "Coreolis effect", "light", "kinetic energy" ]

A

sciq-4710

multiple_choice

Some terrestrial species breathe through their skin and oral cavity because they lack what?

[ "lungs", "windpipe", "mouth", "nose" ]

A

sciq-9282

multiple_choice

What is the region known as the myelencephalon in the embryonic brain?

[ "medulla", "Mesencephalon", "Diencephalon", "Telencephalon" ]

A

sciq-7374

multiple_choice

Making a specific statement based on a general principle is the definition of what type of reasoning?

[ "deductive", "transitive", "inference", "inductive" ]

A

sciq-2927

multiple_choice

What type of earthquake has a shallow focus because the plates meet near the surface?

[ "transform fault", "divergent boundary", "tectonic", "gas giant" ]

A

sciq-4208

multiple_choice

What term describes the process where organisms convert atmospheric nitrogen into biologically useful chemicals?

[ "carbon cycle", "photosynthesis", "cellular respiration", "nitrogen fixation" ]

D

sciq-3872

multiple_choice

What type of plants supplement their mineral nutrition by digesting animals?

[ "herbivorous", "perennials", "carnivorous", "annuals" ]

C

sciq-6553

multiple_choice

What is the study of matter and energy referred to as?

[ "geology", "physical science", "cosmology", "biology" ]

B

sciq-9738

multiple_choice

What is capable of altering the rate of time passing?

[ "strong gravitational fields", "strong magnetic fields", "strong planetary fields", "weak gravitational fields" ]

A

sciq-6014

multiple_choice

Cerebral palsy is a disease caused by injury to what organ as it is developing?

[ "skin", "heart", "brain", "liver" ]

C

sciq-2471

multiple_choice

Lipids are available to the body from how many sources?

[ "one", "three", "two", "five" ]

B

sciq-7400

multiple_choice

The remainder is transferred by contraction of what before the ventricles begin to contract?

[ "the atria", "the stomach", "the arteries", "the large intestine" ]

A

scienceQA-432

multiple_choice

What do these two changes have in common? butter melting on a hot day baking a loaf of bread

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

C

Step 1: Think about each change. Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but it is still made of the same type of matter. Baking a loaf of bread is a chemical change. The type of matter in the dough changes when it is baked. The dough turns into bread! Step 2: Look at each answer choice. Both are only physical changes. Butter melting on a hot day is a physical change. But baking bread is not. Both are chemical changes. Baking bread is a chemical change. But butter melting on a hot day is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.

sciq-1665

multiple_choice

The measure of a substances entropy at 25 degrees celsius is known as it's?

[ "standard entropy", "new entropy", "limited entropy", "specific entropy" ]

A