water
facts and figures exercise
• Every year on Earth 500,000 cubic kilometres
of seawater evaporates, eventually it will fall as rainwater.
• 70% of the Earth’s surface is covered
by water but about one-hundredth of a percent (0.01%) of this water
is available for use by humans!
• Your body weight is made up of 70% water.
Do this simple sum below to work out the weight of the water in
your body.
Your weight in Kilograms x 0.70 = the amount
of water you are made up of (in Kgs)!
What does 1 litre of water weigh in kgs and lbs?
Weigh a litre of water to find out.
There is an old rhyme which says: "A
pint of water weighs a pound and a quarter". See if this is
true and come up with a rhyme for a litre of water.
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