All quizzes
General knowledge · 12 questions
Science and nature quiz
Twelve questions for the curious. No lab coat needed.
Play it here
Nothing is saved and there is no sign-up - your score stays on this page.
Question 1 of 12
Which planet is known as the Red Planet?
Run this live with your team
Everyone answers on their phone, you control each question, live scores and a podium. £5 includes five rounds; add up to five more for £1 each.
Show all questions and answers
Hidden so nobody spots the answers before playing. Quizmasters, this is for you.
- 1. Which planet is known as the Red Planet?
- A. Venus
- B. Jupiter
- C. Mars (answer)
- D. Mercury
Iron-rich dust gives much of Mars's surface its reddish appearance. - 2. What is the chemical symbol for gold?
- A. Go
- B. Gd
- C. Au (answer)
- D. Ag
Au comes from the Latin word aurum, meaning gold. - 3. How many bones are in the adult human body?
- A. 186
- B. 206 (answer)
- C. 226
- D. 246
Babies have more bones than adults because some fuse as they grow. - 4. What is the largest planet in our solar system?
- A. Saturn
- B. Jupiter (answer)
- C. Neptune
- D. Earth
Jupiter is so large that more than a thousand Earths could fit inside it by volume. - 5. What gas do plants absorb from the air for photosynthesis?
- A. Oxygen
- B. Nitrogen
- C. Carbon dioxide (answer)
- D. Hydrogen
Photosynthesis uses light energy to help plants make sugars. - 6. What is the largest mammal on Earth?
- A. African elephant
- B. Blue whale (answer)
- C. Giraffe
- D. Sperm whale
A blue whale's heart is large enough for a person to crawl through its major arteries. - 7. Who developed the theory of general relativity?
- A. Isaac Newton
- B. Albert Einstein (answer)
- C. Stephen Hawking
- D. Niels Bohr
General relativity describes gravity as the curvature of space and time. - 8. What is the hardest natural substance?
- A. Granite
- B. Quartz
- C. Diamond (answer)
- D. Titanium
Diamond is exceptionally hard, but it can still be scratched by another diamond. - 9. How many hearts does an octopus have?
- A. One
- B. Two
- C. Three (answer)
- D. Four
Two of an octopus's hearts pump blood to the gills, while the third serves the body. - 10. At sea level, at what temperature does water boil in Celsius?
- A. 90
- B. 100 (answer)
- C. 110
- D. 120
Water boils at a lower temperature at higher altitudes because air pressure is lower. - 11. Who is credited with discovering penicillin in 1928?
- A. Marie Curie
- B. Louis Pasteur
- C. Alexander Fleming (answer)
- D. Edward Jenner
Fleming noticed that mould had stopped bacteria growing in a dish. - 12. Which organ in the human body is the largest?
- A. Liver
- B. Brain
- C. Lungs
- D. Skin (answer)
Skin helps protect the body and regulate its temperature.
Make the learning count
Quizzes are a good warm-up. When your team needs the real thing, our compliance courses start at £9.59 a learner including VAT, and the CPD log is free for everyone.
Fancy another round?
A few more worth a second guess.
