1. Where is the Water Found on Earth?
Water on Earth
Where is the Water Found on Earth?

2. Groundwater
Groundwater is freshwater under Earth’s surface. Rain soaks into and through the soil and collects above solid rock.

3. Estuary
Estuary
Estuary is places where fresh water from rivers meet the ocean.
Estuary is places where fresh water from rivers meets the ocean.

4. Two –thirds of our bodies are water.

5. A person should drink eight glasses of water or about two quarts of water each day.

6. Most of the earth’s water is found in glaciers and icecaps near the poles.

7. Two types of water on Earth:
Fresh water and salt water.
Fresh water
Salt water

8. Ways to use fresh water:
Drinking
Bathing
Cooking
Growing plants
for food.

9. Some places where fresh water is found.
Streams
Rivers
Lakes
Ponds
Ice glaciers
Ice caps
Underground

10. Fresh water is formed in rain or snow.

11. Most of the Earth’s water is salt water
Most of the Earth’s water is salt water. It cover two-thirds or our planet’s surface.

12. The Pacific Ocean is Earth’s largest ocean
The Pacific Ocean is Earth’s largest ocean. It is so big that all of Earth’s land could fit inside it.

13. Where does most of the salt water on Earth come from? Weathered rocks

14. Ocean water is too salty to drink
Ocean water is too salty to drink. The salt in ocean water is greater than the concentration of salt in human body tissues. Drinking ocean water leads to unhealthful dehydration and more thirst.

15. Dehydration is a dangerous lack of water in the body.

16. The Water Cycle
Lesson 2

17. Evaporation
Evaporation is the changing of a liquid into a gas.

18. Condensation
Condensation is the changing of a gas into a liquid.

19. Precipitation
Precipitation is water that falls to Earth as rain, snow, sleet, or hail.

21. Adding heat or taking away heat changes the form of water.

22. Thermal Energy-heat

23. Water can be found in various forms
Gas as in water vapor.
Liquid as water
Solid as ice.

24. Water vapor in air can also freeze as it condenses, to form frost
Water vapor in air can also freeze as it condenses, to form frost. Air must be cold for frost to form.

25. Frost is seen in the morning because air temperature drops overnight.

26. Water Treatment Plant
Water treatment plants treat water or filters water from rivers or lakes. They also filter some water that has been used. Water treatment plants clean the water before human consumption.

27. Filter means to clean dirt, chemicals, and bacteria from the water.