Q 01/05

Which planet is known as the Red Planet?

A) Neptune

B) Mars

C) Jupiter

D) Mercury

Answer · why

B) Mars

Mars looks orange-red because minerals in its dusty soil have rusted, just like an old nail left out in the rain.

Q 02/05

Which is the largest planet in our Solar System?

A) Earth

B) Saturn

C) Jupiter

D) Venus

Answer · why

C) Jupiter

Jupiter's powerful magnetic field traps charged particles in belts of radiation so intense that it can damage the spacecraft sent to explore it.

Q 03/05

Which planet orbits closest to the Sun?

A) Mercury

B) Venus

C) Earth

D) Mars

Answer · why

A) Mercury

Mercury is closest to the Sun and circles it in just 88 Earth days, yet one sunrise to the next there takes 176 Earth days.

Q 04/05

What kind of object is the Sun?

A) A planet

B) A star

C) A comet

D) A moon

Answer · why

B) A star

The Sun is an ordinary star that happens to sit right at the centre of our Solar System. It only looks so big and bright because it is far closer to u...

Q 05/05

Which gas do plants take in from the air to make their food?

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Carbon monoxide

Answer · why

B) Carbon dioxide

Carbon dioxide and water, with sunlight, become sugar in photosynthesis, and the plant gives off oxygen as a leftover.