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🔬 Science — Quiz 9

10 multiple-choice questions

Question 1 of 10
What is the chemical symbol for water?
Answer: H2O — Two hydrogen, one oxygen.
Question 2 of 10
What force keeps planets orbiting?
Answer: Gravity — Gravity governs orbits.
Question 3 of 10
What is the powerhouse of the cell?
Answer: Mitochondria — Mitochondria produce ATP.
Question 4 of 10
What particle has positive charge?
Answer: Proton — Protons are positive.
Question 5 of 10
What is the pH of pure water?
Answer: 7 — Neutral pH 7.
Question 6 of 10
How many chromosomes do humans have?
Answer: 46 — 46 in 23 pairs.
Question 7 of 10
What does DNA stand for?
Answer: Deoxyribonucleic acid — Carries genetic instructions.
Question 8 of 10
What planet has the Great Red Spot?
Answer: Jupiter — Jupiter's persistent storm.
Question 9 of 10
What metal is liquid at room temp?
Answer: Mercury — Mercury melts at -38.83°C.
Question 10 of 10
What is absolute zero in Celsius?
Answer: -273.15°C — Lowest possible temperature.
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