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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 4 of 12 covers seven completed UTC days.

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Daily round

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

    Answer: Oxidation

    Oxidation is the term for a process in which a species loses electrons.

  2. 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.

  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 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.

  5. Which chemistry term matches this definition: “an element in group 18, whose atoms have filled outer electron shells”?

    Answer: Noble gas

    Noble gas is the term for an element in group 18, whose atoms have filled outer electron shells.

Daily round

  1. 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.

  2. Which earth and space science term matches this definition: “the curved path of one object around another under gravity”?

    Answer: Orbit

    Orbit is the term for the curved path of one object around another under gravity.

  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 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.

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

    Answer: Newton

    Newton is the term for the SI unit of force.

Daily round

  1. 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.

  2. 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.

  3. Which chemistry term matches this definition: “the smallest unit of an element that retains that element’s chemical properties”?

    Answer: Atom

    Atom is the term for the smallest unit of an element that retains that element’s chemical properties.

  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 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.

Daily round

  1. 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.

  2. 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.

  3. 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.

  4. Which physics term matches this definition: “speed measured in a specified direction”?

    Answer: Velocity

    Velocity is the term for speed measured in a specified direction.

  5. Which chemistry term matches this definition: “an atom of an element with a particular number of neutrons”?

    Answer: Isotope

    Isotope is the term for an atom of an element with a particular number of neutrons.

Daily round

  1. 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.

  2. 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.

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

    Answer: Density

    Density is the term for mass divided by volume.

  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 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.

Daily round

  1. 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.

  2. 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.

  3. 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.

  4. Which chemistry term matches this definition: “the chart that organizes chemical elements by atomic number and recurring properties”?

    Answer: Periodic table

    Periodic table is the term for the chart that organizes chemical elements by atomic number and recurring properties.

  5. 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.

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

    Answer: Voltage

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

  3. 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.

  4. Which physics term matches this definition: “a measure of how strongly a material or component opposes electric current”?

    Answer: Resistance

    Resistance is the term for a measure of how strongly a material or component opposes electric current.

  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.