🔬 Science Trivia
Quiz Set 19 — Astronomy
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is the main difference between mitosis and meiosis?
Mitosis produces 2 identical cells; meiosis produces 4 cells with half the chromosomes.
Question 2 of 10
What is the name for the colored part of the eye that controls pupil size?
The iris is the pigmented circular structure that controls the size of the pupil.
Question 3 of 10
What is the chemical symbol for sodium?
Sodium's symbol Na comes from the Latin 'natrium'.
Question 4 of 10
What is the term for the energy stored in chemical bonds?
Chemical energy is stored in the bonds between atoms and released during reactions.
Question 5 of 10
How do sound waves travel through a medium?
Sound waves propagate by causing particles in a medium to oscillate and transfer energy.
Question 6 of 10
What is the name for an organism's scientific two-part name?
Binomial nomenclature uses genus and species to uniquely identify each organism.
Question 7 of 10
Which gas do humans exhale in greater quantities?
Humans exhale higher concentrations of CO2 (4%) compared to inhaled air (0.04%).
Question 8 of 10
What is the term for a reaction that releases heat?
Exothermic reactions release energy as heat to the surroundings.
Question 9 of 10
What type of lens is used to correct nearsightedness?
Concave (diverging) lenses spread light rays and are used to correct myopia (nearsightedness).
Question 10 of 10
What is the definition of specific heat capacity?
Specific heat capacity is the energy needed to raise 1 gram of a substance by 1°C.
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