Water is precious! (Level 1)

Without water, life on Earth would not be possible. Each person needs a regular supply of drinking water. Our body consists to a major part of water.

You can repeat the same quiz as often as you like.

Some recommended links:
An interactive presentation of the water cycle for kids.
Materials on water from Helvetas
The online research ship "Eridanus Quest"
Wasser-macht-schule (a German site with an interesting lexicon!)

1	Why is water so important for us? Choose the three right answers.

Without water...
	... people can live only about 2 days
	... no animals or plants could grow; and therefore we could not produce any food.
	... there would be no source of enegy.
	... there would be no weather: no clouds, no rain, no snow.

2	How does the water cycle work? Find the right three answers.

Water...
	... evaporates from the sea and lakes and builds clouds.
	... falls as rain, snow or hail back to the earth.
	... returns to the ocean mainly in the form of clouds.
	... flows back into the ocean through rivers, lakes and the soil.
	... is driven by the sunís energy and the force of gravity.
Tipp:Here you can follow the path of a rain drop in an interactive series of pictures. Wasserkreislaufs

3	Our planet is covered to ć by water. What about us? How much water does our body consist of?

	Much less: 1/3
	About half of the body: 1/2
	A little less: 2/3
	About the same: 3/4

4	Many of our daily products are produced with water? Which product requires the least water?

	One kilogramm of coton
	orange juice (one liter)
	A car
	A computer

5	Water changes our surroundings. Which statements are true?

Because of water we have...
	... streams, rivers and lakes.
	... valleys and mountains
	... volcanoes and other mountains
	... soils and forests.

6	Water in everyday life. Find the three correct answers.

	A person should drink about 1.5 liters of water per day.
	Hydropower is one of the most importan enery sources in Switzerland (Hydropower taps the energy of a flowing stream to produce electricity.)
	The largest part of our water consumption in a household is used for flushing the toilet.
	If you donít use soap in a shower, no waste water is produced.