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481 values
sciq-10556
multiple_choice
What type of electrons do all group 14 elements have four of?
[ "second layer", "shell", "internal", "valence" ]
D
sciq-813
multiple_choice
What is the third male reprodutive structure after the penis and testes?
[ "epididymis", "clitoris", "anus", "scrotum" ]
A
sciq-4801
multiple_choice
Which two basic parts of a plant develop tough outer coatings to protect the plant from the environment?
[ "stems and stalks", "leaves and stems", "roots and leaves", "bark and stems" ]
B
sciq-1488
multiple_choice
Why is uranus so faint?
[ "far away", "polluted atmosphere", "too cold", "too small" ]
A
sciq-96
multiple_choice
The diatoms are unicellular photosynthetic protists that encase themselves in intricately patterned, glassy cell walls composed of silicon dioxide in a matrix of organic particles. these protists are a component of freshwater and these?
[ "source plankton", "marine plankton", "land plankton", "waste plankton" ]
B
sciq-1887
multiple_choice
Electrons are always added to which energy level first?
[ "the lowest", "the second", "the highest", "the major" ]
A
scienceQA-281
multiple_choice
What do these two changes have in common? mixing sand and water a sidewalk heating up in the sun
[ "Both are chemical changes.", "Both are caused by cooling.", "Both are only physical changes.", "Both are caused by heating." ]
C
Step 1: Think about each change. Mixing sand and water is a physical change. Adding water makes the sand wet. But both the sand and water are still made of the same type of matter as before. A sidewalk heating up in the sun is a physical change. The temperature of the sidewalk goes up, but the sidewalk 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. A sidewalk getting warm in the sun is caused by heating. But mixing sand and water is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-5664
multiple_choice
In what century was the microscope invented?
[ "17th", "15th", "20th", "16th" ]
A
sciq-6949
multiple_choice
What do industries use water to generate?
[ "light", "pollution", "refrigeration", "electricity" ]
D
sciq-3434
multiple_choice
The sum of the pressures of the hydrogen and the water vapor is equal to what?
[ "moon pressure", "precipitation pressure", "atmospheric pressure", "adjacent pressure" ]
C
sciq-330
multiple_choice
What are the 2 primary hosts of ebola in central africa?
[ "hyenas and apes", "lions and elephants", "apes and bats", "apes and hippos" ]
C
sciq-8572
multiple_choice
By what process does the haploid gametophyte produce the gametes?
[ "Spermatogenesis", "mitosis", "angiogenesis", "meiosis" ]
B
sciq-8942
multiple_choice
The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses what?
[ "cerebellum", "cytoplasm", "cell membrane", "golgi apparatus" ]
B
sciq-6509
multiple_choice
How are valuable metabolites recovered?
[ "replication reaction", "reabsorption", "metabolism", "osmosis" ]
B
sciq-8194
multiple_choice
What type of rocks form from sediments that are cemented and compacted?
[ "sedimentary", "granite", "limestone", "crystalline" ]
A
sciq-10358
multiple_choice
Are giraffes herbivores or are they omnivores?
[ "omnivores", "herbivores", "carnivores", "neither" ]
B
sciq-7303
multiple_choice
In statistics a boundary on the precision and accuracy is known as what?
[ "error", "frequency", "median", "instance" ]
A
sciq-10189
multiple_choice
What is the term for the steep sloped side of a sand dune?
[ "break face", "slip face", "front face", "slide face" ]
B
sciq-4298
multiple_choice
What is the name of a branch of the chemistry that deals with the interconversion of chemical energy and electrical energy?
[ "Biochemistry", "electrochemistry", "Inorganic chemistry", "Theoretical Chemistry" ]
B
sciq-9876
multiple_choice
How many types of antigens can an antibody match?
[ "two", "infinite", "one", "four" ]
C
sciq-4483
multiple_choice
Where are the seeds in gymnosperms found?
[ "in roots", "in cones", "in folds", "in leaves" ]
B
sciq-6523
multiple_choice
What is the process in which cells break down glucose, release the stored energy, and use it to make atp
[ "electromagnetic respiration", "reproduction", "photosynthesis", "cellular respiration" ]
D
sciq-6045
multiple_choice
Hormones send what through your body?
[ "proteins", "cells", "signals", "nutrients" ]
C
sciq-6445
multiple_choice
Warming up your body before a workout does what to the blood flow?
[ "reduces it", "stops it", "increases it", "minimizes it" ]
C
sciq-2334
multiple_choice
What do you call a group of cells of the same kind that performs the same function?
[ "nucleus", "tissue", "molecule", "organ system" ]
B
sciq-5797
multiple_choice
Abrasion is a process of what type of weathering?
[ "environmental", "geological", "mechanical", "molecular" ]
C
sciq-8093
multiple_choice
What do you call the illness that occurs when harmful bacteria enter the digestive system in food?
[ "bacteria poisoning", "food poisoning", "nutrition poisoning", "meat poisoning" ]
B
sciq-6491
multiple_choice
What is the second largest planet in the solar system?
[ "saturn", "Mars", "jupiter", "Venus" ]
A
sciq-7389
multiple_choice
What is the rate at which energy is being transferred called?
[ "electric", "pressure", "power", "force" ]
C
sciq-5265
multiple_choice
Silver, gold, and copper all conduct what very well?
[ "electricity", "microwaves", "sound", "light" ]
A
sciq-1736
multiple_choice
What are insect parasites transmitted sexually?
[ "deer ticks", "pubic lice", "pinworms", "chlamydia" ]
B
sciq-9004
multiple_choice
Sight, hearing, balance, taste, smell, and touch are types of what?
[ "memories", "senses", "sensation types", "temperaments" ]
B
sciq-7821
multiple_choice
What does the color of soil indicate?
[ "temperature", "fertility", "density", "chemical makeup" ]
B
ai2_arc-565
multiple_choice
A gasoline is advertised as "releasing fewer pollutants" when it is used in cars. For this claim to be accurate, what has most likely happened to the gasoline?
[ "Its acidity has been increased.", "More oxygen has been dissolved in it.", "Impurities have been removed.", "Its molecules have higher chemical energies." ]
C
sciq-3671
multiple_choice
What is the term for proportion of amount of product actually produced in a chemical reaction versus predicted amount ?
[ "calculus yield", "percent impact", "decrease yield", "percent yield" ]
D
sciq-5915
multiple_choice
The ratio of displacement to time interval is the average what?
[ "speed", "acceleration", "velocity", "direction" ]
C
sciq-8113
multiple_choice
In most fish, where does the embryo develop in relation to the mother's body?
[ "Eggs", "water", "inside", "outside" ]
D
sciq-2205
multiple_choice
Plastics are common examples of synthetic polymers of what abundant element?
[ "hydrogen", "carbon", "silicon", "silver" ]
B
sciq-943
multiple_choice
Mutations that lead to cancer usually occur in genes that control the cell cycle. these include tumor-suppressor genes and what?
[ "Darkness Oncogenes", "extinction - oncogenes", "proto-oncogenes", "apparition - oncogenes" ]
C
sciq-8071
multiple_choice
What type of current do generators in cars use?
[ "polar current", "magnum current", "direct current", "alternating current" ]
D
sciq-2907
multiple_choice
Sperm propel themselves through secretions in the uterus and enter what tube?
[ "ovarian", "uterine", "gaseous", "fallopian" ]
D
sciq-325
multiple_choice
What is the long, narrow tube that carries food from the pharynx to the stomach by the mechanism of peristalsis?
[ "esophagus", "gallbladder", "liver", "spinal cord" ]
A
sciq-5883
multiple_choice
Squamata is the largest order of what broad animal group, and includes lizards and snakes?
[ "amphibians", "reptiles", "spiny fishes", "mammals" ]
B
sciq-7387
multiple_choice
An alloy is a mixture of metals that has bulk metallic properties different from those of its what?
[ "nuclear elements", "mineral elements", "constituent elements", "system elements" ]
C
sciq-9806
multiple_choice
How many miles is the distance between the earth and sun?
[ "91", "82", "78", "93" ]
D
sciq-4220
multiple_choice
What length of time is human gestation commonly divided into?
[ "four quarters", "three trimesters", "two halves", "fifty weeks" ]
B
sciq-10510
multiple_choice
Lipids are broken down by what?
[ "amino acids", "triglycerides", "lipases", "hydrolysis" ]
C
sciq-453
multiple_choice
The water cycle involves movement of water between air and what?
[ "land", "animals", "tree", "air" ]
A
sciq-5731
multiple_choice
Vascular plants evolved what basic structures to collect sunlight?
[ "stems", "leaves", "roots", "flowers" ]
B
sciq-7758
multiple_choice
What do we call any way that animals act, either alone or with other animals.
[ "animal behavior", "animal communication", "typical behavior", "animal habits" ]
A
sciq-10312
multiple_choice
Irrigation can waste a lot of what natural resource?
[ "water", "money", "fertilizer", "habitat" ]
A
sciq-1757
multiple_choice
Breasts are considered accessory organs of what body system?
[ "female reproductive system", "digestive system", "lymphatic system", "nervous system" ]
A
sciq-10623
multiple_choice
What is formed when each sodium atom donates its single valence electron to a chlorine atom?
[ "trioxide chloride", "nitrogen chloride", "carbon chloride", "sodium chloride" ]
D
sciq-4882
multiple_choice
What is the transfer of information from rna to dna called?
[ "reverse transcription", "reverse differentiation", "confront transcription", "forward transcription" ]
A
sciq-456
multiple_choice
In what country can some of the largest natural crystals be found?
[ "mexico", "canada", "spain", "germany" ]
A
sciq-4085
multiple_choice
The common earthworm and leeches are examples of what type of worm?
[ "castrated", "elongated", "encapsulated", "segmented" ]
D
sciq-5493
multiple_choice
Has this ever happened to you? you walk across a carpet, reach out to touch a metal doorknob, and get an unpleasant electric shock? .the reason you get a shock is because of what?
[ "solar charge", "electrical charge", "temperature charge", "sunlight charge" ]
B
sciq-7804
multiple_choice
Deficiency of what mineral causes bones to become porous and weak?
[ "calcium", "zinc", "potassium", "magnesium" ]
A
sciq-1170
multiple_choice
What combines with rain to form acid rain?
[ "suction and sulfur oxides", "compost and sulfur oxides", "nitrogen and sulfur oxides", "carbon dioxide and sulfur oxides" ]
C
sciq-1292
multiple_choice
Most body fluids that you release from your body contain chemicals that kill pathogens. for example, mucus, sweat, tears, and saliva contain enzymes called?
[ "lysozymes", "sporozoans", "enzymes", "lipids" ]
A
scienceQA-1065
multiple_choice
What do these two changes have in common? baking an apple pie water evaporating from a puddle
[ "Both are chemical changes.", "Both are caused by heating.", "Both are only physical changes.", "Both are caused by cooling." ]
B
Step 1: Think about each change. Baking an apple pie is a chemical change. The type of matter in the pie changes. The apples become soft, and the crust turns brown. 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. Step 2: Look at each answer choice. Both are only physical changes. Water evaporating is a physical change. But baking a pie is not. Both are chemical changes. Baking a pie 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.
sciq-5678
multiple_choice
The primary site of carbohydrate digestion is in the?
[ "small intestine", "mouth", "large intestine", "stomach" ]
A
sciq-6705
multiple_choice
During an earthquake what causes seismic waves?
[ "low tide", "Currents", "high winds", "rock displacement" ]
D
sciq-964
multiple_choice
Corals build hard exoskeletons that grow to become what?
[ "coral reefs", "fungi", "stability reefs", "algae" ]
A
sciq-574
multiple_choice
According to count rumford, which two are equivalent ways of transferring energy?
[ "time and space", "heat and work", "addition and multiplication", "osmosis and heredity" ]
B
sciq-9547
multiple_choice
What are large vesicles derived from the endoplasmic reticulum and golgi apparatus?
[ "vacuoles", "tubules", "alleles", "chloroplasts" ]
A
sciq-1355
multiple_choice
A venule is an extremely small vein, generally 8–100 micrometers in diameter. postcapillary venules join multiple capillaries exiting from a capillary bed. multiple venules join to form what?
[ "glands", "clots", "veins", "arteries" ]
C
sciq-8959
multiple_choice
Which system is capable of responding quickly to changing situations?
[ "reproductive system", "circulatory system", "nervous system", "endocrine system" ]
C
sciq-9621
multiple_choice
What does the human body produce to help digest food?
[ "fiber", "enzymes", "carbohydrates", "vitamins" ]
B
sciq-7700
multiple_choice
What part of an atom is electrically neutral?
[ "newtons", "neutrons", "protons", "electrons" ]
B
sciq-10296
multiple_choice
Even though tellurium does indeed have a greater average atomic mass than iodine, it is properly placed before iodine in the?
[ "theory table", "phases table", "cycles table", "periodic table" ]
D
sciq-738
multiple_choice
What are the only plants with a life cycle in which the gametophyte generation is dominant?
[ "photoreactive", "vascular plants", "nonpermeable", "nonvascular" ]
D
scienceQA-6272
multiple_choice
How long is the Grand Canyon?
[ "275 feet", "275 inches", "275 yards", "275 miles" ]
D
The best estimate for the length of the Grand Canyon is 275 miles. 275 inches, 275 feet, and 275 yards are all too short.
sciq-1270
multiple_choice
Metabolic pathways are a series of reactions catalyzed by multiple what?
[ "vitamins", "particles", "hormones", "enzymes" ]
D
ai2_arc-380
multiple_choice
When performing an experiment for a science fair, what should be done if the data do not support the hypothesis?
[ "Check for errors and run the experiment again.", "Change the hypothesis to match the conclusion.", "Change the variable so the data will match the hypothesis.", "Ignore the data and prepare the science fair display anyway." ]
A
sciq-11134
multiple_choice
What is the only natural phenomenon that causes more damage than earthquakes?
[ "blizzards", "hurricanes", "landslides", "volcanos" ]
B
sciq-3110
multiple_choice
The older parts of what structures anchor the plant and transport water and solutes between the soil and shoots?
[ "cells", "bark", "roots", "leaves" ]
C
sciq-5514
multiple_choice
Reducing the number of molecules in a rigid container causes what to decrease?
[ "pressure", "demand", "velocity", "energy" ]
A
sciq-10495
multiple_choice
Where are protons and neutrons located?
[ "radius", "epidermis", "nucleus", "electron shell" ]
C
sciq-11211
multiple_choice
What term means the force of attraction that holds together oppositely charged ions?
[ "solvent bond", "electron bond", "magnetic bond", "ionic bond" ]
D
sciq-6764
multiple_choice
What are clouds on earth made of?
[ "water vapor", "rain", "carbon dioxide gas", "ozone" ]
A
sciq-8848
multiple_choice
Enthalpy changes are measured by using what?
[ "inversion", "calorimetry", "fluorescence", "infraction" ]
B
sciq-5981
multiple_choice
What is the name of the smaller molecules that make up proteins?
[ "rna acids", "amino acids", "DNA acids", "fundamental acids" ]
B
sciq-5117
multiple_choice
Monosaccharides, particularly glucose, are major nutrients for what?
[ "lipids", "proteins", "photosynthesis", "cells" ]
D
sciq-2582
multiple_choice
What was once believed to be the smallest of all particles, as dalton's theory proposed?
[ "atom", "molecule", "nucleus", "neutron" ]
A
sciq-171
multiple_choice
What makes and stores pigments that give petals and fruit their orange and yellow colors?
[ "sporozoans", "pores", "chromoplasts", "protozoa" ]
C
sciq-5379
multiple_choice
What type of protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle?
[ "amino acid", "rod protein", "conduction protein", "membrane protein" ]
D
sciq-6212
multiple_choice
What determines the ability of soil particles to bind many nutrients?
[ "layer charges", "surface pulses", "currents charges", "surface charges" ]
D
sciq-4975
multiple_choice
Introduction of antigens into the body through immunization can confer what benefit?
[ "sensitive immunity", "growth rate", "active respiration", "active immunity" ]
D
sciq-8187
multiple_choice
What can exposure to chemical or biological agents cause later in life?
[ "spontaneous mutation", "adaptation", "an acquired immunodeficiency", "regression" ]
C
scienceQA-877
multiple_choice
Select the gas.
[ "plate", "air inside a soccer ball", "baseball cap", "ballet shoes" ]
B
The air inside a soccer ball is a gas. A gas expands to fill a space. The air fills all the space inside the soccer ball. If air leaks out, it will expand into the space around the ball. A baseball cap is a solid. A solid has a size and shape of its own. If you put a baseball cap on your head, the baseball cap will still have a size and shape of its own. A plate is a solid. If someone drops a plate, it may break into pieces. But each piece will still have a size and shape of its own. A ballet shoe is a solid. A solid has a size and shape of its own. When a dancer wears a ballet shoe, it may bend a little. But the ballet shoe still has a size and shape of its own.
sciq-747
multiple_choice
Who invented dynamite in 1866?
[ "alfred nobel", "Madame Curie", "Louis Pasteur", "Albert Einstein" ]
A
sciq-250
multiple_choice
The amount of kinetic energy in a moving object depends directly on its mass and what else?
[ "direction", "volume", "density", "velocity" ]
D
sciq-11537
multiple_choice
Laid on dry land by reptiles, amniotic eggs have what that prevents them from drying out?
[ "waterproof membranes", "oil coating", "double yolks", "double shells" ]
A
sciq-9837
multiple_choice
Alveoli can be found in which organ in the human body?
[ "Stomach", "Liver", "lungs", "Heart" ]
C
sciq-2876
multiple_choice
What is the term for when the phenotype of offspring is partly determined by the phenotype of its mother, irrespective of genotype?
[ "maternal effect", "congenital effect", "oceanic effect", "uterine effect" ]
A
sciq-10116
multiple_choice
What are the insects that suck up the sap from plants?
[ "roaches and leafhoppers", "aphids and leafhoppers", "butterflies and leafhoppers", "plagues and leafhoppers" ]
B
scienceQA-1685
multiple_choice
Select the gas.
[ "rain", "baseball cap", "air inside a tire", "ring" ]
C
A baseball cap is a solid. A solid has a size and shape of its own. If you put a baseball cap on your head, the baseball cap will still have a size and shape of its own. The air inside a tire is a gas. A gas expands to fill a space. The air in a tire expands to fill all the space inside the tire. If air leaks out, it will expand into the space around the tire. Rain is a liquid. A liquid takes the shape of any container it is in. If you put rainwater into a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space. A ring is a solid. A solid has a size and shape of its own. A ring keeps its shape, even when you take it off your finger.
sciq-3976
multiple_choice
In a liquid, the particles are still in close contact, so liquids have a definite what?
[ "shape", "weight", "growth", "volume" ]
D
sciq-6768
multiple_choice
What is the term for the complete set of genes and alleles within a population?
[ "the chromosomal pool", "the biodiversity pool", "the gene pool", "the ancestral pool" ]
C