1. Earth’s Bodies of Water

2. trench current tidal wave tide water cycle tributary river system
Vocabulary Words
trench
current
tidal wave
tide
water cycle
tributary
river system
drainage basin
rift
reservoir

3. Trench: A deep ocean valley.

4. Current: Giant stream of ocean water.

5. Tidal wave: A giant ocean wave created by Earthquakes and severe storms.

7. Tide: Regular rise and fall of the oceans.

8. Water cycle: The circulation of water from the surface of the Earth to the atmosphere and back.

9. Tributary: Small rivers that feed into larger rivers.

10. River System: A river and all its tributaries.

11. Drainage Basin: The land drained by a river system.

12. Rift: A crack in the Earth’s crust.

13. Reservoir: A human made lake

14. Match the Vocabulary word with the definition
____Rift
____Tide
____ Tidal wave
____Trench
____ Tributary
____River system

15. Earth’s Bodies of Water
Humans and plants need water to survive.

16. Earth’s Bodies of Water
There are many sources of water in the world:
Oceans
Streams and Rivers
Lakes

18. Earth’s Oceans
Oceans are large bodies of water that covers much of the planet.
Oceans are the areas between continents.

19. Earth’s Oceans
The largest and deepest Ocean is the Pacific Ocean.

20. Earth’s Oceans
The Pacific Ocean covers nearly one third of the Earth’s surface.

21. Earth’s Oceans
The Earth’s Oceans has physical features like those on land.
It has mountain ranges, basins and valleys

22. Mountain Range

23. Mariana Trench

24. More than 99% of water supply cannot be used for drinking?
The Water We Drink
More than 99% of water supply cannot be used for drinking?
WHY?

25. The supply of drinking water is replaced by the water cycle.

26. Ground water: Water that is stored within the Earth.
Surface water: Water that the soil does not soak up.

27. The Water We Drink
Most of the water we drink comes from surface water in rivers and lakes.

28. Streams and Rivers
They are bodies of water that flow over a land in a channel.

29. What is a tributary? What is a river system? Streams and Rivers
Streams flow from a high ground to a low ground.
What is a tributary?
What is a river system?

30. All the continents except Antarctica have rivers.
Why doesn’t Antarctica have any rivers?

31. Rivers In Africa: The Nile and The Congo.
In Asia: Chang Jiang and Huang He.
In Australia: Murray
Europe: Danube
North America: Mississippi
South America: Amazon

32. The Earth’s longest river is the Nile

33. The Amazon has the largest river system.

34. The Amazon has the largest river system because it has several tributaries that flow into it

35. Uses of Rivers Rivers Drinking water Transport Food Fertile Soil
Energy
Drinking water

36. Lakes
A lake is a body of water surrounded by land.
There are lakes in every continent of the world.

37. How are lakes formed?

38. Lakes can be formed in several ways:
When water fills a low place on the Earth’s surface.

39. 2. Glaciers carve a hole in the Earth’s surface
2. Glaciers carve a hole in the Earth’s surface. When the glaciers melt, the water fills the holes and a lake is formed.

41. 3. Lakes are formed when rain water collects in holes made in other ways.

42. Crater Lake
Crater Lake was formed when
water collected in the crater of
an extinct volcano

43. Lake Baikal
A lake can be formed when water collects in a huge crack or rift.

44. Some bodies of water that are called seas are actually large lakes.
Some of these are:

45. Dead Sea

46. Sea of Galilee

47. Caspian Sea

48. Not all lakes are made by nature
Not all lakes are made by nature. Some are made when people build dams to control flooding or for electricity.

49. How are lakes formed?

50. CLASSWORK