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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 biology term matches this definition: “an organism that breaks down dead material and recycles nutrients”?

    Answer: Decomposer

    Decomposer is the term for an organism that breaks down dead material and recycles nutrients.

  2. Which biology term matches this definition: “the organelle that produces much of a eukaryotic cell’s usable energy”?

    Answer: Mitochondrion

    Mitochondrion is the term for the organelle that produces much of a eukaryotic cell’s usable energy.

  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 earth and space science term matches this definition: “an icy body that can form a glowing coma and tails near the Sun”?

    Answer: Comet

    Comet is the term for an icy body that can form a glowing coma and tails near the Sun.

  5. 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.

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 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.

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

    Answer: Kinetic energy

    Kinetic energy is the term for energy associated with motion.

  5. 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.

Daily round

  1. 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.

  2. 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.

  3. 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.

  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: “speed measured in a specified direction”?

    Answer: Velocity

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

Daily round

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  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 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: “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.

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

    Answer: Newton

    Newton is the term for the SI unit of force.

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

    Answer: Pascal

    Pascal is the term for the SI unit of pressure.

  5. 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.

Daily round

  1. 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.

  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 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: “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.

  5. 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.

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 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.

  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 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.

  5. 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.