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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 1 of 12 covers seven completed UTC days.

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Daily round

  1. Which physics term matches this definition: “the change in a wave’s direction caused by a change in speed between media”?

    Answer: Refraction

    Refraction is the term for the change in a wave’s direction caused by a change in speed between media.

  2. Which chemistry term matches this definition: “a pure substance made of atoms with the same number of protons”?

    Answer: Element

    Element is the term for a pure substance made of atoms with the same number of protons.

  3. Which chemistry term matches this definition: “a reactive nonmetal element in group 17”?

    Answer: Halogen

    Halogen is the term for a reactive nonmetal element in group 17.

  4. Which biology term matches this definition: “an inherited feature that improves survival or reproduction in a particular environment”?

    Answer: Adaptation

    Adaptation is the term for an inherited feature that improves survival or reproduction in a particular environment.

  5. Which chemistry term matches this definition: “a substance formed by a chemical reaction”?

    Answer: Product

    Product is the term for a substance formed by a chemical reaction.

Daily round

  1. Which earth and space science term matches this definition: “the short-term state of the atmosphere at a particular place and time”?

    Answer: Weather

    Weather is the term for the short-term state of the atmosphere at a particular place and time.

  2. Which earth and space science term matches this definition: “rock altered by heat, pressure, or reactive fluids without completely melting”?

    Answer: Metamorphic rock

    Metamorphic rock is the term for rock altered by heat, pressure, or reactive fluids without completely melting.

  3. Which earth and space science term matches this definition: “the continuous movement of water among Earth’s surface, atmosphere, and subsurface”?

    Answer: Water cycle

    Water cycle is the term for the continuous movement of water among Earth’s surface, atmosphere, and subsurface.

  4. Which biology term matches this definition: “a DNA-containing structure that carries genetic information”?

    Answer: Chromosome

    Chromosome is the term for a DNA-containing structure that carries genetic information.

  5. Which biology term matches this definition: “a network of linked feeding relationships in an ecosystem”?

    Answer: Food web

    Food web is the term for a network of linked feeding relationships in an ecosystem.

Daily round

  1. Which biology term matches this definition: “an immune protein that binds a specific target”?

    Answer: Antibody

    Antibody is the term for an immune protein that binds a specific target.

  2. Which earth and space science term matches this definition: “rock formed when accumulated sediment becomes compacted and cemented”?

    Answer: Sedimentary rock

    Sedimentary rock is the term for rock formed when accumulated sediment becomes compacted and cemented.

  3. Which physics term matches this definition: “mass divided by volume”?

    Answer: Density

    Density is the term for mass divided by volume.

  4. Which earth and space science term matches this definition: “the change of liquid water into water vapor at its surface”?

    Answer: Evaporation

    Evaporation is the term for the change of liquid water into water vapor at its surface.

  5. Which physics term matches this definition: “energy transferred when a force moves an object through a distance”?

    Answer: Work

    Work is the term for energy transferred when a force moves an object through a distance.

Daily round

  1. Which chemistry term matches this definition: “a substance that donates protons or increases hydrogen-ion concentration in water”?

    Answer: Acid

    Acid is the term for a substance that donates protons or increases hydrogen-ion concentration in water.

  2. Which earth and space science term matches this definition: “the breakdown of rock at or near Earth’s surface”?

    Answer: Weathering

    Weathering is the term for the breakdown of rock at or near Earth’s surface.

  3. Which chemistry term matches this definition: “the electrostatic attraction between oppositely charged ions”?

    Answer: Ionic bond

    Ionic bond is the term for the electrostatic attraction between oppositely charged ions.

  4. Which physics term matches this definition: “the SI unit of force”?

    Answer: Newton

    Newton is the term for the SI unit of force.

  5. Which chemistry term matches this definition: “a chemical bond formed when atoms share electron pairs”?

    Answer: Covalent bond

    Covalent bond is the term for a chemical bond formed when atoms share electron pairs.

Daily round

  1. Which biology term matches this definition: “the transfer of pollen that enables fertilization in seed plants”?

    Answer: Pollination

    Pollination is the term for the transfer of pollen that enables fertilization in seed plants.

  2. Which biology term matches this definition: “the net movement of water across a selectively permeable membrane”?

    Answer: Osmosis

    Osmosis is the term for the net movement of water across a selectively permeable membrane.

  3. Which physics term matches this definition: “the rate at which work is done or energy is transferred”?

    Answer: Power

    Power is the term for the rate at which work is done or energy is transferred.

  4. Which physics term matches this definition: “the SI unit of energy and work”?

    Answer: Joule

    Joule is the term for the SI unit of energy and work.

  5. Which earth and space science term matches this definition: “the distance light travels through a vacuum in one year”?

    Answer: Light-year

    Light-year is the term for the distance light travels through a vacuum in one year.

Daily round

  1. Which chemistry term matches this definition: “a starting substance that is changed during a chemical reaction”?

    Answer: Reactant

    Reactant is the term for a starting substance that is changed during a chemical reaction.

  2. Which biology term matches this definition: “a nucleic acid involved in gene expression and protein synthesis”?

    Answer: RNA

    RNA is the term for a nucleic acid involved in gene expression and protein synthesis.

  3. Which chemistry term matches this definition: “a homogeneous mixture in which one or more substances are dissolved”?

    Answer: Solution

    Solution is the term for a homogeneous mixture in which one or more substances are dissolved.

  4. Which physics term matches this definition: “stored energy associated with position or configuration”?

    Answer: Potential energy

    Potential energy is the term for stored energy associated with position or configuration.

  5. Which physics term matches this definition: “the rate at which velocity changes over time”?

    Answer: Acceleration

    Acceleration is the term for the rate at which velocity changes over time.

Daily round

  1. Which biology term matches this definition: “the membrane-bound compartment containing most DNA in a eukaryotic cell”?

    Answer: Nucleus

    Nucleus is the term for the membrane-bound compartment containing most DNA in a eukaryotic cell.

  2. Which biology term matches this definition: “a body structure made of multiple tissue types working together”?

    Answer: Organ

    Organ is the term for a body structure made of multiple tissue types working together.

  3. Which biology term matches this definition: “a specialized cell that transmits information through electrical and chemical signals”?

    Answer: Neuron

    Neuron is the term for a specialized cell that transmits information through electrical and chemical signals.

  4. Which biology term matches this definition: “a preparation designed to train immune protection against a disease”?

    Answer: Vaccine

    Vaccine is the term for a preparation designed to train immune protection against a disease.

  5. Which earth and space science term matches this definition: “rock formed when molten material cools and solidifies”?

    Answer: Igneous rock

    Igneous rock is the term for rock formed when molten material cools and solidifies.