Pre-Reading Activity

• What do you think of when you hear the word WATER CYCLE?

• What is precipitation ?

What is this picture of?

•SNOW

What does snow look like?

•White

•Fluffy

What can you tell me about this

picture?

•Rain

•How can we describe rain?

•Wet

•Sometimes cold

•Water

•liquid

How can we describe these

photos?

•Ice

What is ice like?

•Hard

•Cold

•solid

Forms of Water• Water can occur

in 3 different states– solid, liquid, gas

Solid waterSolid water is frozen; ice is an example of solid water that has been frozen

Liquid waterLiquid water is wet and fluid (flows); this is the most familiar form such as waters, lakes, and

rivers are all liquid water

GasGas is the water vapor in the air that we can not see

WATER CYCLE

infiltration condensation evaporation

•Ground•Absorb

precipitation transpiration

•Clouds*•Cold air

•Gas to liquid

•Liquid to gas•Water VAPOR

•Hot air

•Rain•Snow•Ice

•weather

•Absorb water•Liquid from plant

changes to water vapor

Key Words:Absorb= to take in

Gas= can not see/air like

Liquid= example is water

Snow= cold, white

Ice=hard, cold, solid

*clouds

• http://www.youtube.com/watch?v=Yw275056JtA&feature=related

• http://www.youtube.com/watch?v=Yw275056JtA&feature=related

• http://www.youtube.com/watch?v=Yw275056JtA&feature=related

Video Clip

IntroductionIntroduction

The water cycle is a process that not only gives us water to drink, fish to eat, but also weather

patterns. A weather pattern is day to day condition such

as temperature, cloudiness and rainfall Water is an important part of our environment

and takes up much of our Earth’s surface

KEY WORDS:

•condition= act/event in this example it is weather

•temperature= hot/cold

•cloudiness= many clouds

VOCAB• Evaporation: where a

liquid, such as water, changes into a gaseous (like air) state becoming water vapor. Heat increases the rate of evaporation.

• Condensation: occurs when a gas is changed into liquid. This happens when the temperature decreases (opposite of evaporation)

Precipitation: raindrops fall to the earth. This

happens from the processes of evaporation

and condensation -rain, snow, ice (are all forms

of precipitation)

Infiltration: where rain water soaks into the layers of the ground

Transpiration: the final process where plants absorb the water from the soil. Water then moves to the leaves of the plant and is then evaporated into the air [called transpiration]

Overview of the Water Cycle

THE CYCLEcycle= repeated process

o Water is constantly being cycled between the atmosphere (vapor gasses in the air create an atmosphere), the ocean and the land.

o The cycle is an important process that helps us continue life on Earth.

STEP 1:STEP 1: water is evaporated

The evaporation causes vapor to rise in the air

• STEP 2:STEP 2: • The vapor*

forms clouds through the process of condensation

• STEP 3:STEP 3: • The clouds

move over the land and precipitation falls in the form of rain, snow or ice

*Remember: vapor is the gas form of water into the air

• STEP 4:STEP 4: The precipitation then goes through the

process of infiltration once it lands on the ground and soaks into the layers of the

earth(Infiltration is like a sponge

absorbing water. The dirt soaks up the precipitation just as

sponge would soak up water)

• STEP 5: STEP 5: The cycle is repeated

REVIEWREVIEW• Write down the process that

each number represents in #2-5

2. Condensation

3. Evaporation

4. Precipitation

5. Infiltration

REVIEWREVIEW

• Who can tell me what precipitation is?

• Who can define evaporation/condensation?

• What is the process that absorbs the water into the ground (we used a

sponge as an example of this)