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Science Trivia Quiz

From atoms to outer space, test your scientific knowledge with this fun and educational quiz!

Q1. What is the boiling point of water?

100°C

90°C

80°C

Q2. Which planet is known as the Red Planet?

Venus

Mars

Jupiter

Q3. What gas do plants breathe in that humans and animals breathe out?

Oxygen

Nitrogen

Carbon dioxide

Q4. What force pulls objects toward the earth?

Gravity

Magnetism

Electricity

Q5. What is the main gas found in the air we breathe?

Oxygen

Carbon dioxide

Nitrogen

Q6. How many bones does an adult human have?

206

210

195

Q7. Which is the largest planet in our solar system?

Saturn

Jupiter

Neptune

Q8. What type of animal is a frog?

Reptile

Amphibian

Mammal

Q9. What is the chemical symbol for gold?

Q10. What is the hardest natural substance on Earth?

Gold

Iron

Diamond

Q11. How many planets are in our solar system?

Q12. What part of the plant conducts photosynthesis?

Stem

Leaf

Root

Q13. Which gas is most abundant in the Earth's atmosphere?

Oxygen

Nitrogen

Carbon dioxide

Q14. Which vitamin is produced when the human body is exposed to sunlight?

Vitamin C

Vitamin D

Vitamin A

Q15. What is the center of an atom called?

Electron

Nucleus

Proton

Q16. What is the formula for water?

CO2

H2O

Q17. Which of these is not a type of rock?

Igneous

Sedimentary

Plastic

Q18. How many hearts does an octopus have?

Q19. Which element breathes life into the periodic table as number 8 and is essential for combustion?

Hydrogen

Oxygen

Carbon

Q20. What is the primary source of energy for the Earth?

The Moon

The Earth's core

The Sun

Q21. Which part of the human body contains the femur?

Arm

Leg

Head

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