Q 01/05

Which planet is known as the Red Planet?

A) Venus

B) Mars

C) Jupiter

D) Mercury

Answer · why

B) Mars

Mars looks orange-red from Earth because its surface is covered in iron oxide, which is the same rusty stuff you see on an old nail left out in the ra...

Q 02/05

Which is the largest planet in our Solar System?

A) Earth

B) Saturn

C) Jupiter

D) Neptune

Answer · why

C) Jupiter

Jupiter is the fifth planet out from the Sun and bigger than all the other planets put together. Its famous Great Red Spot is a storm wider than Earth...

Q 03/05

Which planet orbits closest to the Sun?

A) Mercury

B) Venus

C) Earth

D) Mars

Answer · why

A) Mercury

Mercury is the first planet out from the Sun and also the smallest planet in the Solar System.

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) Pure oxygen

B) Carbon dioxide

C) Nitrogen

D) Hydrogen

Answer · why

B) Carbon dioxide

In photosynthesis a plant uses sunlight to turn carbon dioxide and water into sugar, and it gives off oxygen as a leftover.