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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 8 of 12 covers seven completed UTC days.

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Daily round

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

    Answer: Pressure

    Pressure is the term for force applied per unit area.

  2. 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.

  3. 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.

  4. Which chemistry term matches this definition: “the SI unit for amount of substance, containing a fixed number of entities”?

    Answer: Mole

    Mole is the term for the SI unit for amount of substance, containing a fixed number of entities.

  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 electrostatic attraction between oppositely charged ions”?

    Answer: Ionic bond

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

  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 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.

  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 physics term matches this definition: “electric potential difference between two points”?

    Answer: Voltage

    Voltage is the term for electric potential difference between two points.

Daily round

  1. Which biology term matches this definition: “the process by which plants and some other organisms convert light energy into chemical energy”?

    Answer: Photosynthesis

    Photosynthesis is the term for the process by which plants and some other organisms convert light energy into chemical energy.

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

    Answer: Kinetic energy

    Kinetic energy is the term for energy associated with motion.

  3. Which chemistry term matches this definition: “a substance that increases reaction rate without being consumed overall”?

    Answer: Catalyst

    Catalyst is the term for a substance that increases reaction rate without being consumed overall.

  4. 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.

  5. Which earth and space science term matches this definition: “water that falls from the atmosphere as rain, snow, sleet, or hail”?

    Answer: Precipitation

    Precipitation is the term for water that falls from the atmosphere as rain, snow, sleet, or hail.

Daily round

  1. 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.

  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 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.

  4. 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.

  5. Which chemistry term matches this definition: “a process in which a species gains electrons”?

    Answer: Reduction

    Reduction is the term for a process in which a species gains electrons.

Daily round

  1. 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.

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

    Answer: Newton

    Newton is the term for the SI unit of force.

  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 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.

  5. Which earth and space science term matches this definition: “Earth’s central region, made mainly of iron and nickel”?

    Answer: Core

    Core is the term for Earth’s central region, made mainly of iron and nickel.

Daily round

  1. 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.

  2. 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.

  3. 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.

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

    Answer: Anion

    Anion is the term for a negatively charged ion.

  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.

Daily round

  1. 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.

  2. 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.

  3. Which physics term matches this definition: “a material through which electric charge can move readily”?

    Answer: Conductor

    Conductor is the term for a material through which electric charge can move readily.

  4. 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.

  5. 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.