WHY?
HOW?
WHERE?
WHO?
WHAT?
100

Why do tigers have stripes?

So they can hide in the striped grassland shadow

100

How do elephants drink water?

They suck it up through their trunks then squirt it into their mouth

100

Where do rivers begin? 

On hills or mountains

100

Who bulit the pyramids?

The Egyptians

100

What is the fastest animal on land? 

The cheetah

200

Why does the Moon change shape?

It doesn't. It is always round

200

How do people balance on bicycles?

By moving forward

200

Where do the stars go in the morning?

Nowhere

200

Who invented electricity?

Nobody. It has always existed (lightning)
200

What are germs?

Tiny living things

300

Wha do I have to go sleep?

To rest your body and let it ready for the next day

300

How long does it take to fly to the Moon?

3 days

300

Where does cheese come from?

Cows, sheep and goats

300

Who was Tutankhamun? 

A Pharaon

300

What is sand made of?

Rocks and shells

400

Why do we have eyebrows?

To stop sweat from dripping into our eyes

400

How deep is the sea?

The deepest point is almost 11km deep

400

Where do rivers end?

They end in another river, lake or sea

400

Who was the first animal in space?

Laika the dog

400

What is the largest animal on Earth?

Blue whale

500

Why do camels have humps? 

To store fat

500

How do fish breathe?

Using their gills

500

Where do penguins lay their eggs?

Usually in nests near the sea

500

Who sailed around the world first? 

Captain Magellan's crew from Portugal in 1522

500

What is a rainbow? 

Pretty bands of light