Lesson 13

Observe and guess!

1 / 22

Slide 1: Slide

EconomiePraktijkonderwijsLeerjaar 1

This lesson contains 22 slides, with interactive quizzes and text slides.

Lesson duration is: 45 min

Items in this lesson

Observe and guess!

Slide 1 - Slide

Slide 2 - Slide

The picture is about ______________
and it is made up of _____________

Slide 3 - Mind map

Slide 4 - Slide

Atmospheric pressure

Leaarning objective :

Define atmospheric pressure and related terms

Slide 5 - Slide

ATMOSPHERIC PRESSURE

1. The force exerted against the surface by continuous collision of gas molecules.

2. The weight of a column of air at a given place and time is called air pressure / atmospheric pressure.

Slide 6 - Slide

Do you think atmospheric pressure is affecting us?

Yes

Slide 7 - Poll

Observe and guess !

Slide 8 - Slide

Slide 9 - Slide

The left image is about __________
The right image is about ___________

Slide 10 - Mind map

ISOBARS AND BAROMETER

ISOBAR - Isobars are lines on a weather map joining together places of equal atmospheric pressure

BAROMETER - A barometer is a scientific instrument used to measure atmospheric pressure.

Slide 11 - Slide

PRESSURE GRADIENT AND UNIT OF ATMOSPHERIC PRESSURE

Slide 12 - Slide

PRESSURE GRADIENT

Rate of change of pressure per unit horizontal distance.

atmospheric pressure units - mb/ pa/ mm Hg

Slide 13 - Slide

atmospheric pressure units

Slide 14 - Slide

learning objective 2

Analyse the factors affecting atmospheric pressure

Slide 15 - Slide

Factors affecting atmospheric pressure

Slide 16 - Mind map

factors affecting atmospheric pressure

1. Temperature

2. Altitude

3. Water vapour / moisture

4. Rotation of the Earth

Slide 17 - Slide

Temperature

Slide 18 - Mind map

Altitude

Slide 19 - Mind map

Water vapour

Slide 20 - Mind map

Earth's rotation

Slide 21 - Mind map

Factors affecting Atmospheric pressure

• Altitude - pressure decreases with increase in altitude

• Temperature - pressure decreases with an increase in temperature

• Water Vapour - pressure decreases with an increase in water vapour

• Rotation - air moves from high pressure to low pressure.

Slide 22 - Slide