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Science and the human body general knowledge quiz

From your funny bone to the far side of the Moon. Twenty science questions.

Free to use with your own team, courtesy of WorkplaceHero - workplacehero.co.uk

Question sheet

1. What is the chemical symbol for gold?
- A. Go
- B. Gd
- C. Au
- D. Ag
2. Which planet is known as the Red Planet?
- A. Venus
- B. Mars
- C. Jupiter
- D. Mercury
3. What is the largest organ of the human body?
- A. Liver
- B. Brain
- C. Skin
- D. Lungs
4. How many bones are in the adult human body?
- A. 186
- B. 206
- C. 226
- D. 256
5. What gas do plants absorb from the air for photosynthesis?
- A. Oxygen
- B. Nitrogen
- C. Carbon dioxide
- D. Hydrogen
6. What is the hardest natural substance on Earth?
- A. Quartz
- B. Diamond
- C. Titanium
- D. Obsidian
7. Which blood cells carry oxygen around the body?
- A. White cells
- B. Red cells
- C. Platelets
- D. Plasma cells
8. What is the speed of light in a vacuum, roughly?
- A. 300 km per second
- B. 3,000 km per second
- C. 30,000 km per second
- D. 300,000 km per second
9. Which element has the atomic number 1?
- A. Helium
- B. Hydrogen
- C. Oxygen
- D. Carbon
10. What is the smallest unit of life?
- A. Atom
- B. Molecule
- C. Cell
- D. Organ
11. Which planet has the most moons currently confirmed?
- A. Jupiter
- B. Saturn
- C. Uranus
- D. Neptune
12. What does DNA stand for?
- A. Deoxyribonucleic acid
- B. Dinucleic acid
- C. Deoxyribose nucleic atom
- D. Dual nucleic acid
13. Which metal is liquid at room temperature?
- A. Lead
- B. Mercury
- C. Aluminium
- D. Tin
14. What part of the eye controls how much light enters?
- A. Retina
- B. Cornea
- C. Iris
- D. Lens
15. How long does Earth take to orbit the Sun, to the nearest day?
- A. 350 days
- B. 365 days
- C. 375 days
- D. 400 days
16. Which vitamin is produced in the skin when exposed to sunlight?
- A. Vitamin A
- B. Vitamin C
- C. Vitamin D
- D. Vitamin K
17. What is the boiling point of water at sea level in Celsius?
- A. 90
- B. 95
- C. 100
- D. 110
18. Which gas makes up most of Earth's atmosphere?
- A. Oxygen
- B. Carbon dioxide
- C. Nitrogen
- D. Argon
19. What is the largest bone in the human body?
- A. Skull
- B. Femur
- C. Spine
- D. Pelvis
20. Who proposed the theory of general relativity?
- A. Isaac Newton
- B. Niels Bohr
- C. Albert Einstein
- D. Stephen Hawking

Answer sheet (for the quizmaster)

1. C - Au
It comes from the Latin word aurum.
2. B - Mars
Its colour comes from iron oxide dust.
3. C - Skin
The skin accounts for roughly 15% of body weight.
4. B - 206
Babies are born with around 300, many of which fuse.
5. C - Carbon dioxide
They release oxygen as a byproduct.
6. B - Diamond
Diamond scores a perfect 10 on the Mohs scale.
7. B - Red cells
Their red colour comes from haemoglobin.
8. D - 300,000 km per second
Light from the Sun takes about eight minutes to reach Earth.
9. B - Hydrogen
Hydrogen is the most abundant element in the universe.
10. C - Cell
The cell theory dates back to the 1830s.
11. B - Saturn
Saturn overtook Jupiter with well over 100 confirmed moons.
12. A - Deoxyribonucleic acid
Its double helix structure was described in 1953.
13. B - Mercury
It was once used in thermometers.
14. C - Iris
The iris gives eyes their colour.
15. B - 365 days
The extra quarter day is why we have leap years.
16. C - Vitamin D
It helps the body absorb calcium.
17. C - 100
At altitude, water boils at a lower temperature.
18. C - Nitrogen
Nitrogen accounts for about 78%.
19. B - Femur
The femur, or thigh bone, is also the strongest.
20. C - Albert Einstein
He published it in 1915.