The document discusses several interesting facts about the chemical compound water. It covers water's role in organisms, physical states, and chemical properties. Some key points include: - Water makes up 75% of both animals and fish and even higher percentages of various plants, with humans being 86% water. - Water can both save and kill - it transfers 85% of diseases worldwide, causing 25 million deaths annually. - Water exists in nature as a solid, liquid, and gas, but scientists have identified 5 liquid and 14 solid states. Under certain temperatures, water can take on properties similar to glass.

1. Interesting facts about
water
Andrew Peterson 6d

2. Table of Contents
1.Water as a chemical compound
2. The role of water
2.1The amount of water in several organisms
2.2Water as a cause of death
3.Water. Physical aspects
3.1 Physical form of water
3.2 When water is like glass
4. Chemical property of water

3. 1. Water as a chemical compound
Water is the most simplest and common substance on the
Earth. However, it holds a plenty of secrets.
At present, scientists continue analyzing qualities of water.
They find more and more interesting facts about it.
Definition: Water is a chemical compound with the chemical
formula H2O.
A water molecule consist of one oxygen (O) and
two hydrogen (H) atoms

4. 2.THE ROLE of WATER
WATER is very important for the life of animals, plants, people. All living beings
consist of WATER.
2.1 The amount of water in several organisms
The following list shows the amount of water in different organisms:
animals – 75%
fish – 75%
Jelly-fish –99%
potatoes - 76%
apples - 85%
 tomatoes -90%
cucumbers - 95%
melon -96%.
Human newborn child- 86%
Elderly people - <50%

5. 2.2 Water as a cause of
DEATH
Water could SAVE or KILL.
Be careful! 85% of all diseases in the
world are transferred through
water! Every year 25.000.000 people dies because of those
diseases!!!

6. 3. WATER.PHYSICAL ASPECTS
3.1. Physical forms of water
1.Water appears in nature in 3 common states of matter -solid, liquid,
and gas. However, scientists distinguish 5 different states of water in
liquid and 14 states in solid form.
2.
From hot water to ice.
To get ice from HOT water, firstly, it should get cold. Why couldn’t we use already
COLD water?
Surprisingly, many experiments showed that hot water could turn into ice faster
than cold water.
3. Water freezes under 0 C, boils at 100 C.
However , VERY pure water could stay liquid with freezing temperature!!!

7. 3.2 When water is like a
glass
Under -120 C - water becomes sticky and thick
Under -135 C - water becomes similar to GLASS( solid and without crystal
structure).

8. 4. Chemical property of water
Water could be DANGEROUS. For instance, in Azerbaijan, there is water
which could go up in flames because of a great amount of methane in it.

9. Thank you all for your
attention