True or false
Water covers about 60% of the Earth's surface.
False - about 71%
A small round or pear-shaped portion of liquid that hangs or falls or adheres to a surface.
drop
About how long can you live without water?
3-4 days
How many different phases does ice exist?
(more than) 20
The human body is about 40% water.
False - about 60%
Name the three forms of water.
solid, liquid, gas
How can you lose water? (mention 2 ways)
urination, sweating, breathing, defecation, vomiting, evaporating through skin
What percentage of illnesses are related to water in developing countries? (5% difference is accepted)
80%
Water is the only substance on Earth that expands when it freezes.
True
Water has no ... (Name at least one.)
calories, fat, sugar
Which one travels faster: sound in air or sound in water?
in water
At what temperature does freshwater freeze?
0 degrees Centigrade
Freshwater makes up only about 2.5% of all the water on Earth.
True
Water is known as the “... solvent.” (It can dissolve more substances than any other.)
universal
How much water does our brain contain? (5% difference is accepted)
about 75%
Why can ice float in water?