Ch 2.3 rain and snow

• Aardrijkskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

Welcome

Introduction 2.3

working 2.3

extra explanation 2.3

Learning goals

-You know the two factors that influence the amout of precipitation

- You know that warm air can contain more water than cold air.

- You know that warm air rises and cold air descends

- You understands that precipitation forms when air cools down

- You understand that precipitation forms when air cools down

- You understand why there is more precipitation in one place than in another one

Evaporation

Evaporation is the process in which water changes from a liquid(vloeibaar) to a gas.

this is done by heating up water warm enough it evaporates

condensation

is the proces in which water vapor/gasses become liquid due to the cooling down of the air.

precipitation

Water in solid or liquid form falling from the atmosphere onto the earth due to gravity.

How is rain formed? Put the words in the right positon.

1. evaporation - condensation - precipitation
2. precipitation - condensation - evaporation
3. condensation - evaporation - precipitation
4. evaporation - precipitation - condensation

Water vapour turns into little droplets. You see clouds.

Which process is described here?

1. Evaporation
2. Precipitation
3. Condensation
4. Melting

Precipitation

Evaporation

Ground water

Condensation

Water cycle

Ocean

Precipitation

Evaporation

Condensation

Condensation happens when it gets ....

1. Colder
2. Warmer

Self Study

Read	2.3
Make	2.3
How	alone
Time	15
Done?	Make Piff list, summary,
Result	check: 6
Learn	2.1, 2.2

Tijdens deze fase van de les controleer je of leerlingen jouw instructie hebben begrepen d.m.v. een begeleide oefening.

Types of precipitation

• Relief precipitation
• frontal precipitation
• convection rain

Relief precipitation

Cold Frontal precipitation

Warm front precipitation

Convection rain

- heavy showers

-great heights

- warm  high up

Precipitation that forms when wind collides with a mountain

1. relief precipitation
2. frontal precipitation
3. convection precipitation
4. mountain precipitation

The precipitation which causes heavy showers

1. summer
2. relief
3. frontal
4. convection

which kind of precipitation is formed due to rising hot air

1. relief
2. frontal
3. convection
4. air

Self Study

Read	2.3
Make	2.3 and finish
How	Pairs
Time	15
Done?	Make Piff list
Result	Check 2,3,8
atlas	4,7

Tijdens deze fase van de les controleer je of leerlingen jouw instructie hebben begrepen d.m.v. een begeleide oefening.