Water A
Water B
Water C
Vocab
Extra Worksheets
100

How much of the Earth's surface is covered by water?

What is "75%" or "three-quarters"?

100

What does water become when it freezes?

What is "ice"?

100

If we wash our hands with ___ water, we can wet them all over.

What is "soapy"?

100

If something is not safe, it is ___.

What is "dangerous"?

100

The water cycle is the journey water takes from the ___ to the ground and back.

What is "sky"?

200

Why can we not drink water from the ocean?

We cannot drink water from the ocean because it is salty.

200

When big drops of water are too heavy to float in the sky, the fall to the ground as ___.

What is "rain"?

200

Some birds and animals have ___ coverings so they can get water off them easily.

What is "waterproof"?

200

To be not covered is to be ___.

What is "exposed"?

200

The ___ that is dissolved in the ocean does not evaporate.

What is "salt"?

300

What gas is added to water to kill germs?

What is "chlorine"?

300

Clouds, fog and mist are like ___.

What is "steam"?

300

Boats and ships are ___ so they can move in the water easily.

What is "streamlined"?

300

The waste water system is called the ___.

What is "sewage works" or "sewage system"?

300

Water in the ocean changes to vapour because of the energy from the ___.

What is "Sun"?

400

The sea can be polluted by ___ and other substances from ships.

What is "oil"?

400

Why is it good that the surface of the water freezes first?

It's good that the surface of the water freezes so the animals and plants can live at the bottom of the water.

400

Several barges often travel together pulled by one barge that has an ___.

What is "engine"?

400

What do we call the place that makes electricity using water?

What is a "hydro-electric power station"?

400

Rain, snow and sleet are all examples of ___.

What is "precipitation"?
500

At the sewage system, the dirty water is put into big ___.

What are "tanks"?

500

Why do cars have cold water in their radiators?

The cold water takes away heat from the engine so cars don't get too hot.

500

Cacti have very long ___ that spread out to collect any rain or dew from a large area.

What are "roots"?

500

Make a sentence of at least six words using the word "current".

The leaves of the water plants move with the current.

500

Nimbus means that a cloud is heavy and ___ and will bring rain.

What is "dark"?

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