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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 12 of 12 covers seven completed UTC days.

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Daily round

  1. 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.

  2. 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.

  3. 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.

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

    Answer: Condensation

    Condensation is the term for the change of water vapor into liquid water.

  5. 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.

Daily round

  1. 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.

  2. Which earth and space science term matches this definition: “Earth’s thin outermost solid layer”?

    Answer: Crust

    Crust is the term for Earth’s thin outermost solid layer.

  3. 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.

  4. Which earth and space science term matches this definition: “molten or partly molten rock beneath Earth’s surface”?

    Answer: Magma

    Magma is the term for molten or partly molten rock beneath Earth’s surface.

  5. Which physics term matches this definition: “the number of repeating cycles per unit of time”?

    Answer: Frequency

    Frequency is the term for the number of repeating cycles per unit of time.

Daily round

  1. 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.

  2. 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.

  3. 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.

  4. Which chemistry term matches this definition: “the principle that total mass remains constant in a closed-system chemical reaction”?

    Answer: Conservation of mass

    Conservation of mass is the term for the principle that total mass remains constant in a closed-system chemical reaction.

  5. Which biology term matches this definition: “the maintenance of relatively stable internal conditions in an organism”?

    Answer: Homeostasis

    Homeostasis is the term for the maintenance of relatively stable internal conditions in an organism.

Daily round

  1. 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.

  2. Which earth and space science term matches this definition: “a large rounded body orbiting a star that does not produce energy by stellar fusion”?

    Answer: Planet

    Planet is the term for a large rounded body orbiting a star that does not produce energy by stellar fusion.

  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 physics term matches this definition: “force applied per unit area”?

    Answer: Pressure

    Pressure is the term for force applied per unit area.

  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: “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.

  2. 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.

  3. Which earth and space science term matches this definition: “a vast gravitationally bound system of stars, gas, dust, and dark matter”?

    Answer: Galaxy

    Galaxy is the term for a vast gravitationally bound system of stars, gas, dust, and dark matter.

  4. 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.

  5. 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.

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 chemistry term matches this definition: “a reaction that releases energy to its surroundings”?

    Answer: Exothermic reaction

    Exothermic reaction is the term for a reaction that releases energy to its surroundings.

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

    Answer: Density

    Density is the term for mass divided by volume.

  4. Which chemistry term matches this definition: “a positively charged ion”?

    Answer: Cation

    Cation is the term for a positively charged ion.

  5. 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.

Daily round

  1. Which physics term matches this definition: “the maximum displacement of a wave from its equilibrium position”?

    Answer: Amplitude

    Amplitude is the term for the maximum displacement of a wave from its equilibrium position.

  2. Which biology term matches this definition: “an organism that makes organic food from inorganic materials and an energy source”?

    Answer: Producer

    Producer is the term for an organism that makes organic food from inorganic materials and an energy source.

  3. Which physics term matches this definition: “the capacity of a system to do work or cause change”?

    Answer: Energy

    Energy is the term for the capacity of a system to do work or cause change.

  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 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.