# 3.2 Temperature differences on Earth (V1P)

Today
3.2 Temperature differences on Earth
• Recap 3.1 + homework check (15 min.)
• Explanation (20 min.)
• Get to work (20 min.)
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Slide 1: Tekstslide
AardrijkskundeMiddelbare schoolvwoLeerjaar 1

In deze les zitten 16 slides, met tekstslides en 2 videos.

Lesduur is: 60 min

## Onderdelen in deze les

Today
3.2 Temperature differences on Earth
• Recap 3.1 + homework check (15 min.)
• Explanation (20 min.)
• Get to work (20 min.)

#### Slide 3 -Tekstslide

Check: Assignments
3.1 assignment 3 on page 68 and assignment 4 on page 69 of the workbook.

#### Slide 6 -Tekstslide

Learning goals 3.2
KNOWLEDGE
• You know that the Earth has a habitable climate thanks to the atmosphere.
• You understand the influence the position of the Sun and the geographical latitude have on temperature.

SKILLS
• You can calculate the average temperature.

#### Slide 7 -Tekstslide

The Earth has a blanket
1. Without the atmosphere, the temperature at night would be freezing cold / boiling hot.
2. The atmosphere is directly / indirectly warmed by the Sun.
3. The higher in the atmosphere, the higher / lower the temperature

#### Slide 8 -Tekstslide

The higher, the colder.
Temperature decreases on average by 6  ⁰C per kilometre.

The temperature at 1000 metres is 14 ⁰C.
What is the temperature at 2000 metres?

What is the temperature at 3500 metres?

#### Slide 9 -Tekstslide

The higher, the colder.
Temperature decreases on average by 6  ⁰C per kilometre.

The temperature at 1000 metres is 14 ⁰C.
What is the temperature at 2000 metres?
8 ⁰C

What is the temperature at 3500 metres?
-1 ⁰C

#### Slide 10 -Tekstslide

Average daily temperatures are used to describe the climate with.
• maximum temperature
• minimum temperature
5a + b. At what time of day is the temperature often the lowest? Explain your answer.
5c. When te maximum T is 21 degrees and the minimum T is 5 degrees. What is the average day temperature?
5d. What does the average day temperature say about the climate?

#### Slide 12 -Video

The Netherlands lies at 52⁰ N:
• Suns rays hit the Earth at an angle.

The Equator lies at 0⁰:
• Suns rays hit the Earth perpendicularly
• 3x as much Sun-energy as the poles

Because the Earth is a sphere, the angle of incidence of the Sun is different everywhere on Earth.

#### Slide 13 -Tekstslide

high Sun position
large surface is heated

#### Slide 14 -Tekstslide

Apply your knowledge
4a. The photo was taken on the beach in the Netherlands. Is it evening or morning?

#### Slide 15 -Tekstslide

Get to work
3.2 assignment 7 on page 71

Done? Start with the assignments of 'Localisation on Earth' on page 66 and 67 of the workbook.