1. Lesson Outline Chapter 8 Unit 2
Follow the Water
Lesson Outline
Chapter 8 Unit 2

2. WHAT MAKES WATER DISAPPEAR?
Heat energy from the Sun causes water particles to _________.
move rapidly

3. WHAT MAKES WATER DISAPPEAR?
The process in which water particles change from a liquid to a gas is called ________.
evaporation

4. WHAT MAKES WATER DISAPPEAR?
Water vapor rises because it is _________ than air.
lighter

5. WHAT MAKES WATER DISAPPEAR?
Water vapor is a(n) _______ gas.
invisible

6. WHAT MAKES WATER DISAPPEAR?
Water evaporates from Earth’s ________ and _________.
land
water surfaces

7. WHAT MAKES WATER DISAPPEAR?
High in the atmosphere, water vapor particles move_________ because it is cold.
slowly

8. WHAT MAKES WATER DISAPPEAR?
These water vapor particles lose heat energy, slow down, and _______.
condense

9. WHAT MAKES WATER DISAPPEAR?
Tiny droplets of condensed water in the atmosphere form _________.
clouds

10. WHAT MAKES WATER DISAPPEAR?
When clouds grow heavy with water droplets, ________ causes them to fall to the ground.
gravity

11. WHAT IS PRECIPITATION?
Rain, snow, hail, and sleet are forms of _________.
precipitation

12. WHAT IS PRECIPITATION?
The form in which precipitation falls depends on_______________.
temperature

13. WHAT IS PRECIPITATION? Most precipitation falls into the _________.
oceans

14. Some water soaks into the ground as__________ or __________.
WHAT IS PRECIPITATION?
Some water soaks into the ground as__________ or __________.
soil water
groundwater

15. WHAT IS PRECIPITATION?
Cold temperatures cause water to release heat energy, or lose heat, and the moving particles in water to slow down and________.
freeze

16. WHAT IS PRECIPITATION?
Warm temperatures cause water particles to absorb heat energy, causing ice and snow to________.
melt

17. HOW DOES WATER TRAVEL? Water continually _______ from place to place.
moves

18. HOW DOES WATER TRAVEL?
The never-ending movement of water through evaporation, condensation, and precipitation is called the ________.
water cycle

19. HOW DOES WATER TRAVEL?
In Earth’s water cycle, the ___________ causes evaporation.
Sun’s energy

20. HOW DOES WATER TRAVEL?
The oceans never overflow because water _______ from them.
evaporates

21. HOW DOES WATER TRAVEL? Heat is released during __________.
condensation

22. melting or evaporation
HOW DOES WATER TRAVEL?
Heat is absorbed during ________.
melting or evaporation

23. HOW DOES WATER TRAVEL?
The source of energy for Earth’s water cycle is the ________.
Sun

24. WHAT KINDS OF PRECIPITATION DO YOU GET?
Snow is made up of small ________, clear and shiny particles of frozen water.
crystals

25. WHAT KINDS OF PRECIPITATION DO YOU GET?
Water vapor in the atmosphere freezes at ________.
0 C or 32 F

26. WHAT KINDS OF PRECIPITATION DO YOU GET?
Falling pieces of ice that are 5 millimeters of larger are called ________.
hail

27. WHAT KINDS OF PRECIPITATION DO YOU GET?
When rain falls through layers of cold air, the raindrops freeze to form ________.
sleet