01

What gas do plants absorb from the atmosphere for photosynthesis?

A Oxygen B Nitrogen C Carbon dioxide D Hydrogen

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02

What is the chemical symbol for gold?

A Ag B Au C Gd D Go

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03

Which organ pumps blood around the human body?

A Liver B Lungs C Kidneys D Heart

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04

What force keeps planets in orbit around the Sun?

A Magnetism B Gravity C Friction D Electricity

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05

At sea level, water boils at approximately what temperature?

A 50°C B 75°C C 100°C D 125°C

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06

Which particle has a negative electric charge?

A Proton B Neutron C Electron D Photon

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07

What is the largest organ of the human body?

A Liver B Skin C Brain D Lung

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08

Which blood cells help fight infections?

A Red blood cells B White blood cells C Platelets D Plasma cells

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09

What is the closest star to Earth?

A Sirius B Proxima Centauri C The Sun D Betelgeuse

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010

Which vitamin is produced in the skin in response to sunlight?

A Vitamin A B Vitamin B12 C Vitamin C D Vitamin D

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