Science Trivia Questions And Answers

It’s not rocket science… or is it? See how you fare with these fun science trivia questions and answers spread across 5 rounds of 10 questions each. How many can you answer?

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Science Trivia Quiz

Round 1: Space Trivia Questions

Round 1 of our science quiz is all about space.

1. On which planet is the largest mountain in the solar system found?

2. Which planet in our solar system is closest to the sun?

3. Who was the second man to walk on the moon?

4. What was the name of the Soviet spacecraft in which Yuri Gagarin became the first man to orbit the earth?

5. Approximately how many Earth days is a Venus year?

6. Sirius, the brightest star in the night sky, is in which constellation?

7. How many moons does Mars have?

8. How often does Halley’s Comet appear in the sky?

9. Which unit of measurement, used by astronomers to measure the vast distances to objects outside our Solar System, is equal to 3.26 light years?

10. After the Sun, which is the nearest star to Earth?

Round 1 Answers
1. Mars: the mountain is called Olympus Mons.
2. Mercury.
3. Buzz Aldrin.
4. Vostock I.
5. 225 days.
6. Canis Major.
7. Two moons.
8. Every 75 – 76 years.
9. The parsec.
10. Proxima Centauri.

Round 2: The Natural World

The second round of our science trivia questions covers the natural world.

1. How many hearts do octopuses have?

2. Which creature has the largest heart?

3. How many compartments does a cow’s stomach have?

4. Which branch of biology deals with the behavior of animals, usually concentrating on animal behavior under natural conditions?

5. Cuttlefish, octopuses and squids belong to which order of animals?

6. Which is the fastest land animal over a short distance?

7. Which bird has the largest wingspan of all living birds?

8. The adjective caprine is used to describe which animal?

9. What color is an Austrolorp hen?

10. What kind of creature is a lamprey?

Round 2 Answers
1. Three.
2. The blue whale: its heart weighs more than 1,500 pounds.
3. Four.
4. Ethology.
5. Cephalopods.
6. The cheetah.
7. The wandering albatross.
8. Goats.
9. Black.
10. A fish.

Round 3: Famous Scientists

This round of our science trivia quiz is all about famous scientists and their discoveries and inventions.

1. Who discovered penicillin?

2. Who developed the special theory of relativity?

3. Who was the first woman to win a Nobel Prize (for Physics in 1903)?

4. Who performed the first human heart transplant in 1967?

5. Who first formulated the theory of evolution in his book, “The Origin of Species”?

6. Which scientist formulated the law of universal gravitation?

7. Who invented the barometer in 1643?

8. Which Swedish scientist invented the Centigrade temperature scale, sometimes named after him?

Question 9. What is the name of the apparatus used to measure an unknown electrical resistance by balancing two legs of a circuit, named after the English scientist who invented it?

10. Who invented the mathematical system of logarithms?

Round 3 Answers
1. Alexander Fleming.
2. Albert Einstein.
3. Marie Curie.
4. Dr. Christiaan Barnard.
5. Charles Darwin.
6. Isaac Newton.
7. Evangelista Torricelli.
8. Anders Celsius.
9. The Wheatstone Bridge, named after Sir Charles Wheatstone.
10. John Napier.

Round 4: The Human Body

The human body is the focus of this section of our science trivia questions.

1. What is the heaviest organ in the human body?

2. What is the fattiest human organ?

3. What is the name of the white outer layer of the eyeball?

4. In which part of the body are the ossicles found?

5. What is the longest bone in the human body?

6. Which organ of the human body is affected by nephritis?

7. What is the name of the largest vein in the human body?

8. Which part of the body is affected by blepharitis?

9. What is the medical term for labored breathing which is derived from the Greek for “bad breath”?

10. What part of the human body is affected by scoliosis?

Round 4 Answers
1. The liver.
2. The brain: it is about 60% fat.
3. The sclera.
4. The ear.
5. The femur (thigh bone).
6. The kidneys.
7. The inferior vena cava.
8. The eyelids.
9. Dyspnoea.
10. The spine.

Round 5: General Science Trivia Questions

The final round of our quiz consists of general science trivia questions.

1. How many hydrogen atoms are in one molecule of water?

2. Which of these is not found in the nucleus: A. proton, B. neutron, C. electron?

3. What is the most abundant gas in the earth’s atmosphere?

4. What is the chemical symbol for potassium?

5. What number on the Beaufort wind scale corresponds to hurricane force?

6. Diamonds are mostly composed of which element?

7. Hematology is a branch of medicine involving the study of what?

8. What is the product of a body’s mass and its linear velocity?

9. Brass is an alloy of which two metals?

10. What is a manometer used to measure?

Round 5 Answers
1. Two.
2. C. Electron.
3. Nitrogen.
4. K.
5. 12.
6. Carbon.
7. Blood.
8. Momentum.
9. Copper and zinc.
10. Gas pressure.

More Fun Trivia Questions

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