AG AIGAMELIB 59 playable now, 61 experiments Play a case
Menu

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 2 of 12 covers seven completed UTC days.

Play today's quiz

Daily round

  1. Which physics term matches this definition: “a force that opposes relative motion between contacting surfaces”?

    Answer: Friction

    Friction is the term for a force that opposes relative motion between contacting surfaces.

  2. 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.

  3. 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.

  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 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.

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 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.

  3. Which chemistry term matches this definition: “an atom or molecule with a net electric charge”?

    Answer: Ion

    Ion is the term for an atom or molecule with a net electric charge.

  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 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 SI unit of force”?

    Answer: Newton

    Newton is the term for the SI unit of force.

  2. 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.

  3. 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.

  4. 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.

  5. Which physics term matches this definition: “the rate at which electric charge flows”?

    Answer: Electric current

    Electric current is the term for the rate at which electric charge flows.

Daily round

  1. 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.

  2. Which chemistry term matches this definition: “a reaction that absorbs energy from its surroundings”?

    Answer: Endothermic reaction

    Endothermic reaction is the term for a reaction that absorbs energy from its surroundings.

  3. 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.

  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 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 earth and space science term matches this definition: “the transport of weathered rock or soil by water, wind, ice, or gravity”?

    Answer: Erosion

    Erosion is the term for the transport of weathered rock or soil by water, wind, ice, or gravity.

  2. Which chemistry term matches this definition: “a physical combination of substances that are not chemically bonded”?

    Answer: Mixture

    Mixture is the term for a physical combination of substances that are not chemically bonded.

  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: “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 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.

Daily round

  1. 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.

  2. Which biology term matches this definition: “the cellular structure that assembles proteins”?

    Answer: Ribosome

    Ribosome is the term for the cellular structure that assembles proteins.

  3. 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.

  4. 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.

  5. 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.

Daily round

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. Which biology term matches this definition: “the net movement of particles from higher concentration toward lower concentration”?

    Answer: Diffusion

    Diffusion is the term for the net movement of particles from higher concentration toward lower concentration.