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Seven days of questions and answers

Science Trivia Answers Archive

Review earlier daily rounds, reveal the correct answer, and use the short explanation to learn the fact behind each question. Page 2 of 12 covers seven completed UTC days.

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Daily round

  1. Which biology term matches this definition: “a group of similar cells working together to perform a function”?

    Answer: Tissue

    Tissue is the term for a group of similar cells working together to perform a function.

  2. Which biology term matches this definition: “the process cells use to release usable energy from nutrients”?

    Answer: Cellular respiration

    Cellular respiration is the term for the process cells use to release usable energy from nutrients.

  3. Which earth and space science term matches this definition: “molten rock that has reached Earth’s surface”?

    Answer: Lava

    Lava is the term for molten rock that has reached Earth’s surface.

  4. Which physics term matches this definition: “the return of a wave from a boundary into its original medium”?

    Answer: Reflection

    Reflection is the term for the return of a wave from a boundary into its original medium.

  5. Which physics term matches this definition: “the distance between corresponding points on successive waves”?

    Answer: Wavelength

    Wavelength is the term for the distance between corresponding points on successive waves.

Daily round

  1. Which biology term matches this definition: “differential survival and reproduction associated with inherited traits”?

    Answer: Natural selection

    Natural selection is the term for differential survival and reproduction associated with inherited traits.

  2. Which physics term matches this definition: “the product of an object’s mass and velocity”?

    Answer: Momentum

    Momentum is the term for the product of an object’s mass and velocity.

  3. Which physics term matches this definition: “the tendency of an object to resist a change in its motion”?

    Answer: Inertia

    Inertia is the term for the tendency of an object to resist a change in its motion.

  4. Which physics term matches this definition: “a push or pull that can change an object’s motion”?

    Answer: Force

    Force is the term for a push or pull that can change an object’s motion.

  5. Which chemistry term matches this definition: “a substance that accepts protons or increases hydroxide-ion concentration in water”?

    Answer: Base

    Base is the term for a substance that accepts protons or increases hydroxide-ion concentration in water.

Daily round

  1. Which physics term matches this definition: “the region in which magnetic forces act on magnets or moving charges”?

    Answer: Magnetic field

    Magnetic field is the term for the region in which magnetic forces act on magnets or moving charges.

  2. Which earth and space science term matches this definition: “the Sun and the objects gravitationally bound in orbit around it”?

    Answer: Solar system

    Solar system is the term for the Sun and the objects gravitationally bound in orbit around it.

  3. Which chemistry term matches this definition: “the logarithmic scale commonly used to express how acidic or basic a solution is”?

    Answer: pH

    pH is the term for the logarithmic scale commonly used to express how acidic or basic a solution is.

  4. Which chemistry term matches this definition: “a highly reactive metal element in group 1, excluding hydrogen”?

    Answer: Alkali metal

    Alkali metal is the term for a highly reactive metal element in group 1, excluding hydrogen.

  5. Which earth and space science term matches this definition: “a large moving section of Earth’s rigid outer shell”?

    Answer: Tectonic plate

    Tectonic plate is the term for a large moving section of Earth’s rigid outer shell.

Daily round

  1. Which chemistry term matches this definition: “two or more atoms held together by chemical bonds”?

    Answer: Molecule

    Molecule is the term for two or more atoms held together by chemical bonds.

  2. Which earth and space science term matches this definition: “one complete orbital journey of an object around another”?

    Answer: Revolution

    Revolution is the term for one complete orbital journey of an object around another.

  3. Which biology term matches this definition: “the basic structural and functional unit of living organisms”?

    Answer: Cell

    Cell is the term for the basic structural and functional unit of living organisms.

  4. Which earth and space science term matches this definition: “the thick layer of hot rock between Earth’s crust and core”?

    Answer: Mantle

    Mantle is the term for the thick layer of hot rock between Earth’s crust and core.

  5. Which chemistry term matches this definition: “a physical combination of substances that are not chemically bonded”?

    Answer: Mixture

    Mixture is the term for a physical combination of substances that are not chemically bonded.

Daily round

  1. Which physics term matches this definition: “the attraction between objects that have mass”?

    Answer: Gravity

    Gravity is the term for the attraction between objects that have mass.

  2. Which physics term matches this definition: “the rate at which electric charge flows”?

    Answer: Electric current

    Electric current is the term for the rate at which electric charge flows.

  3. Which earth and space science term matches this definition: “a relatively small rocky or metallic object orbiting the Sun”?

    Answer: Asteroid

    Asteroid is the term for a relatively small rocky or metallic object orbiting the Sun.

  4. Which earth and space science term matches this definition: “the lowest atmospheric layer, where most weather occurs”?

    Answer: Troposphere

    Troposphere is the term for the lowest atmospheric layer, where most weather occurs.

  5. Which physics term matches this definition: “energy associated with motion”?

    Answer: Kinetic energy

    Kinetic energy is the term for energy associated with motion.

Daily round

  1. Which earth and space science term matches this definition: “the streak of light produced when a space particle heats in an atmosphere”?

    Answer: Meteor

    Meteor is the term for the streak of light produced when a space particle heats in an atmosphere.

  2. Which biology term matches this definition: “the net movement of particles from higher concentration toward lower concentration”?

    Answer: Diffusion

    Diffusion is the term for the net movement of particles from higher concentration toward lower concentration.

  3. Which biology term matches this definition: “the variety of genes, species, and ecosystems in a region or on Earth”?

    Answer: Biodiversity

    Biodiversity is the term for the variety of genes, species, and ecosystems in a region or on Earth.

  4. Which biology term matches this definition: “a unit of heredity encoded in DNA”?

    Answer: Gene

    Gene is the term for a unit of heredity encoded in DNA.

  5. Which chemistry term matches this definition: “an atom or molecule with a net electric charge”?

    Answer: Ion

    Ion is the term for an atom or molecule with a net electric charge.

Daily round

  1. Which chemistry term matches this definition: “the substance dissolved in a solvent”?

    Answer: Solute

    Solute is the term for the substance dissolved in a solvent.

  2. Which chemistry term matches this definition: “the component of a solution that dissolves another substance”?

    Answer: Solvent

    Solvent is the term for the component of a solution that dissolves another substance.

  3. Which biology term matches this definition: “an organism’s role and resource use within an ecosystem”?

    Answer: Ecological niche

    Ecological niche is the term for an organism’s role and resource use within an ecosystem.

  4. Which earth and space science term matches this definition: “the envelope of gases surrounding a planet”?

    Answer: Atmosphere

    Atmosphere is the term for the envelope of gases surrounding a planet.

  5. Which biology term matches this definition: “a biological catalyst that speeds a chemical reaction”?

    Answer: Enzyme

    Enzyme is the term for a biological catalyst that speeds a chemical reaction.