Question 1 of 10
What is the lightest element?
Answer: Hydrogen — Atomic mass ~1.008.
Question 2 of 10
What type of rock forms from magma?
Answer: Igneous — Cooled magma = igneous.
Question 3 of 10
What does a barometer measure?
Answer: Air pressure — Atmospheric pressure.
Question 4 of 10
What is the speed of sound in air?
Answer: 343 m/s — ~343 m/s at 20°C.
Question 5 of 10
What organelle does photosynthesis?
Answer: Chloroplast — Chloroplasts contain chlorophyll.
Question 6 of 10
What is the most common blood type?
Answer: O+ — O+ in ~38% of population.
Question 7 of 10
What part of brain controls balance?
Answer: Cerebellum — Cerebellum coordinates movement.
Question 8 of 10
What color does litmus turn in acid?
Answer: Red — Blue litmus turns red in acid.
Question 9 of 10
How many bones does a shark have?
Answer: 0 — Cartilage skeleton, no bones.
Question 10 of 10
What element is Fe?
Answer: Iron — From Latin 'ferrum'.