National Science Bee Practice Test

These questions are part of the practice quiz. Start practicing

• Which of the following is a moon of Jupiter?
• During mitosis, the daughter cells have:
• Which of the following best identifies the reactants in the general photosynthesis equation?
• Who is known as the father of genetics?
• Which energy source captures energy by the motion of air turning a turbine to generate electricity?
• Which statement best differentiates compounds from mixtures?
• If a block has mass 2 kg and volume 0.5 cubic meters, what is its density?
• Which process is NOT explicitly listed as part of the rock cycle description?
• What is Ohm's Law?
• The direct transfer of heat from one substance to another substance that it is touching.
• Which energy source is produced when sunlight is converted into electrical energy or thermal energy?
• Gregor Mendel studied inheritance using which organism?
• In chemistry, what is the pH range for acids?
• In a right triangle, cosecant is defined as which ratio?
• What best contrasts a hypothesis with a scientific theory?
• Which taxonomic rank represents a group of closely related classes?
• Which provides stronger evidence: a single anecdote or multiple repeated experiments?
• How does the Sun produce energy?
• Which process do plants use to convert light energy into chemical energy?
• What trigonometric function is defined as the ratio of the opposite side to the hypotenuse?
• Which layer is commonly described as the boundary between the atmosphere and space?
• Which statement best describes acceleration?
• Which geometric concept refers to a line that touches a circle at exactly one point?
• What is the greenhouse effect?
• What is the purpose of randomization in experimental design?
• Which body system breaks down food and absorbs nutrients?
• How does electricity conduction differ between metals and insulators?
• The element with symbol Li is a reactive alkali metal. Which option correctly identifies it?
• A radioactive metal used as a nuclear fuel and in weapons is?
• Which atmospheric layer extends from the Earth's surface up to about 17 kilometers and is the site of weather and contains most atmospheric water vapor?
• Which object-oriented programming language is widely used for web applications and applets?
• What is the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents?
• Which SI unit measures electric current?
• Photosynthesis primarily occurs in which organelle?
• Which gas is produced during photosynthesis?
• The combined landmass of Europe and Asia is called which term?
• Which subatomic particle carries a positive charge and is found in the nucleus of an atom?
• Which term describes organisms with cells that contain a nucleus and membrane-bound organelles?
• If scientists cannot reproduce results, what does it imply?
• Which atmospheric layer lies immediately above the stratosphere where meteors burn up?
• Which genotype guarantees expression of a recessive trait?
• Which subatomic particle carries a negative charge?
• What is the outer layer of the thermosphere that extends outward into space called?
• Which phenomenon describes light bending when entering a new medium?
• The uppermost layer of the atmosphere, in which temperature increases as altitude increases.
• Which term describes heat transfer that occurs when two substances are in direct contact, with no intermediate medium?
• Which geometric term describes a line that intersects a circle in two points?
• What is the water cycle?
• What is Newton's second law?
• Which statement describes a dwarf planet?
• Which statement correctly defines kinetic energy?
• How are meteors, asteroids, and comets distinguished?
• The sine of an acute angle is the ratio of which sides?
• Which taxonomic rank groups together species that are similar?
• Which energy source relies on sunlight and can be converted into electricity or heat?
• Which bond is formed by sharing electrons?
• What is the difference between a planet and a dwarf planet?
• In a right-angled triangle, the ratio of the adjacent side to the hypotenuse defines which trigonometric function?
• Which statement best describes a scientific theory?
• What is potential energy?
• If a homozygous dominant tall plant (TT) is crossed with a homozygous recessive short plant (tt), what is the genotype of all offspring?
• What is the difference between weather and climate?
• What term describes a line in the plane of a circle that intersects the circle in exactly one point?
• Which energy source uses heat from underground rocks or water to produce energy?
• In a closed system, how does mass behave during a chemical reaction?
• What is a hypothesis and why should it be testable?
• The trigonometric function defined as the ratio of the adjacent side to the hypotenuse in a right triangle is called what?
• In plant cells, which structure forms the rigid outer boundary?
• If a data set has a mean of 50 and a standard deviation of 5, approximately what fraction lies within two standard deviations of the mean?
• How do you calculate density from mass and volume?
• Which statement best describes Java?
• Which equation expresses Newton's second law in words?
• Which energy source is derived from heat stored in underground rocks or water?
• An object of mass 2 kg experiences a force of 4 N. What is its acceleration?
• What term describes the role a species plays in its ecosystem, including how it obtains resources and interacts with other organisms?
• What is peer review?
• Which planet is the largest in the solar system?
• What is the rock cycle?
• In physics, what is velocity?
• Which statement defines a planet?
• pH is a measure of what?
• Which statement describes the Sun's energy production?
• Which statement best describes a fossil fuel?
• What does it mean if a result is reproducible?
• What is the primary cause of earthquakes?
• Which of the following is a simple machine?
• Which energy source generates electricity by using turbines driven by moving water?
• Which of the following is an example of renewable energy?
• What is a circuit in which loads are connected one after another?
• What are isotopes?
• What is a circuit in which loads are connected in parallel?
• Natural selection is best described as:
• Which term describes a star that ends its life in a violent explosion?
• Dmitri Mendeleev based the arrangement of elements primarily on which property?
• Which statement best defines a tectonic plate?
• Homozygous vs heterozygous: Which statement is true?
• Which statement best defines acceleration?
• Which observation strongly supported the heliocentric model?
• Why are units important when performing calculations?
• Which gas do plants release during photosynthesis?
• If a scatter plot shows no discernible pattern between two variables, what can be inferred about their correlation?
• Which organelle is the powerhouse of the cell?
• Which form of heat transfer involves energy moving through empty space without requiring matter?
• What is a nebula?
• What is the control center of the cell?
• What is kinetic energy?
• Which term describes a large group of islands in the south Pacific including Melanesia, Micronesia, and Polynesia?
• The transfer of heat by the movement of a fluid is called what?
• Isotopes are atoms of the same element that differ in the number of neutrons. Which statement is true about isotopes?
• Name the epiclassic site located in the North Basin of Mexico between the Aztec capital and the US Southwest.
• Which Soviet physicist was known for civil liberties advocacy and human rights reforms?
• What is a scatterplot used for?
• Which organelle is most directly involved in cellular respiration and energy production?
• Which factor best supports reliability of experimental results?
• What does statistical significance mean in experimental results?
• Mendel's experiments established the principle of genetics, including which concept?
• Which statement describes a characteristic of renewable energy sources?
• This system consists of a network of vessels, ducts, nodes, and organs and provides defense against infection. Which system is it?
• Which statement best describes what happens during peer-reviewed publication?
• What causes the seasons on Earth?
• Which body system is responsible for gas exchange between the body and the environment, including the nose, trachea, and lungs?
• What is renewable energy?
• What happens to density if a substance expands while mass stays the same?
• In a series circuit, what is the relationship of total resistance to the individual resistances?
• Which cell structure regulates which substances can enter or leave the cell?
• In a heterozygous Aa for a dominant trait, which allele determines the phenotype?
• Which substance is an insecticide that is also toxic to animals and humans?
• What does pH measure, and what range indicates acidity?
• In photosynthesis, which energy source drives the reaction?
• Which statement about HTML is true?
• Energy stored in the nucleus of an atom is known as what?
• Alta Vista is best known as what in the context of the early Internet?
• What does the law of conservation of mass state in a closed system?
• Which relation expresses Newton's second law?
• What best describes the difference between a scientific fact and a theory?
• Which term describes pumping water at high pressure to break apart rocks to release natural gas?
• Patagonia is a dry plateau region located in which country?
• In traditional classification, which rank is the broadest category?
• Earthquakes occur most commonly along which geological features?
• Which taxonomic rank groups families that share common traits?
• If mass remains constant and volume decreases, what happens to density?
• Which molecule acts as the primary energy carrier in cells for most processes?
• A mutation is:
• What does HTML stand for?
• Which term describes the energy stored in the movement of air that can be harnessed for electricity?
• DNA is made of:
• Who created the periodic table?
• The process of binding or sticking to a surface is called what?
• Which concept describes the differential survival and reproduction of individuals with advantageous traits?
• Which object is the largest in the asteroid belt?
• Which statement accurately describes the difference between reflection and refraction?
• What is natural selection?
• NH4+ is the chemical symbol for which compound?
• Explain the difference between correlation and causation.
• What is density and how is it calculated?
• In DNA base pairing, which pairing is correct?
• Which atmospheric layer extends outward into space and marks the outer boundary of the atmosphere?
• Which molecule carries genetic information from DNA to the ribosome for protein synthesis?
• Which quantity is measured in ohms?
• In a scatter plot, what does a positive correlation indicate?
• A food chain illustrates:
• Which atmospheric layer lies directly above the Troposphere?
• Which energy source captures energy from moving air by turning a turbine?
• A noble gas used in advertising signs because it glows when electrified is?
• What is a proportion and how is it calculated?
• Which planet is the smallest among the terrestrial planets?
• Over many generations, natural selection leads to:
• Which description correctly contrasts a prokaryotic cell with a eukaryotic cell?
• How is density defined?
• Which term describes the process by which molecules cling to a surface rather than being absorbed into the bulk?
• What is the function of ribosomes?
• If a p-value is 0.03 in an experiment, what does this indicate?
• Which statement correctly describes kinetic and potential energy?
• What is potential energy, and which example best illustrates it?
• Which organelle is the site of ATP production?
• In a controlled experiment, why is a control group necessary?
• Which atmospheric layer lies between the Stratosphere and the Thermosphere?
• Which term describes organisms with cells that lack a nucleus?
• When interpreting a line graph showing temperature over time, which aspects should you examine?
• Line graphs typically display what?
• What is a control group?
• What is the law of conservation of mass?
• What is a control variable?
• Which group of compounds used in refrigerators and spray products can enter the atmosphere and destroy ozone?
• Bias in an experiment and how can it be minimized?
• What is the purpose of a hypothesis test?
• Which programming language is often used to write applications requiring performance and memory management?
• A hypothesis should be testable and falsifiable.
• Which term describes the release of a previously adsorbed substance from a surface?
• What is a dominant allele?
• What is the chemical formula for water?
• Which statement best describes the purpose of a histogram?
• What is frequency in the context of a wave?
• Which atmospheric layer is the outermost layer of Earth's atmosphere and gradually fades into space?
• Which planet is the smallest among the terrestrial planets?
• In solids, heat is transmitted primarily by direct contact between particles.
• Mitosis is the process that:
• Which geometric term describes a line that intersects a circle in two points?
• Which statement correctly contrasts velocity and speed?
• A gene is:
• In cellular respiration, the energy stored in glucose is released mainly as:
• Which is an independent variable: amount of sunlight a plant receives or the color of the pot?
• Which subatomic particle has no charge and is found in the nucleus of an atom?
• What is a scatter plot used for?
• Why is unit consistency important in data reporting?
• What is the approximate acceleration due to gravity on Earth?
• What is electric resistance?
• In biology, what is the basic unit of life?
• Which statement correctly describes reflection and refraction?
• What is peer review?
• Who became the first human to travel into space?
• What evidence supports the heliocentric model?
• Which statement about acceleration is true?
• If one parent has genotype TT and the other tt, what is the phenotype of all offspring?
• What are the three main subatomic particles in an atom?
• What is the purpose of a control group?
• Two variables show a correlation. What does that imply about causation?
• What is kinetic energy, and which of the following best illustrates it?
• What is the large landmass that includes both Europe and Asia called?
• In a Punnett square, a recessive phenotype appears only if the genotype is?
• In an experiment, which variable is deliberately changed by the researcher?
• Cellular respiration produces which combination of products?
• In what year did Yuri Gagarin achieve spaceflight?
• What is an atom?
• What does the Celsius-to-Kelvin conversion require?
• What is the general chemical equation for photosynthesis?
• Which term describes a planet that orbits the Sun and clears its orbit?
• Which rank sits between Class and Family?
• Which body system consists of the skin, mucous membranes, hair, and nails?
• Energy that is radiated or transmitted in the form of rays or waves or particles.
• What is the difference between weather and climate?
• What is the primary molecule produced by cellular respiration for energy?
• Which structure controls movement of substances into and out of the cell?
• How does a simple machine affect effort, distance, or direction of force?
• What is the rigid outer layer that surrounds plant cells?
• If density is 1 g/mL and you have a volume of 500 mL, what is the mass?
• Which gas is used in advertising signs and glows when electrified?
• Which of the following is classified as a dwarf planet?
• What is the Mohs scale used to measure?