1. S4 – Weather Unit
Image copyright Joseph Kerski

2. Lesson 2 – Factors Affecting Temperature
We Will:
Understand four different factors which influence the temperature

3. Starter – heads and tails Match the weather element to the example
EXAMPLES
Temperature
Northerly
Precipitation
Hot, freezing, 3 degrees Celsius
Wind Speed
1.5mm
Wind Direction
Sunny, 8 hours
Cloud Amount
Windy, 50km/h
Visibility
High pressure, 1032mb
Air Pressure
Clear or foggy
Sunshine Amount
Cloudy, overcast, 5 oktas

4. 1. Latitude (distance from the equator)
Latitude of Inverness

5. Task 1 - In your jotter write the numbers 1 to 13
Task 1 - In your jotter write the numbers 1 to 13. Write the correct labels next to each one. Numbers 1 to 5 are numbers whereas the rest are labels. 1. 2. 3. 4. 5. 6. 7. 8.
10.
11.
12. 9.
13.
Hand out should be provided to pupils (A5 size or smaller each) – this should be glued into their jotter and the add the key below.

6. Latitude or distance from the equator
Temperatures drop the further an area is from the equator due to the curvature of the Earth.
The Sun’s light warms the Earth, which then warms the air.
In areas closer to the poles, the sunlight is spread over a larger area so temperatures are cooler.

7. The presence of ice and snow nearer the poles causes a higher albedo, meaning that more of the Sun’s light is reflected before it can warm the ground.

8. 2. Aspect
In the Northern Hemisphere, south facing slopes are warmer as they receive far more sunlight than north facing ones, again warming the ground more.
North facing slopes are colder, snow lasts longer in the spring and provides water for trees
Image from Wikipedia commons
South facing slopes are warmer and drier

9. 3. Altitude or Relief
Locations at a higher altitude have colder temperatures.
Temperature usually decreases by 1°C for every 100 metres in altitude.
Too warm for snow lower down – it’s raining
Image copyright Sylvia Knight
Snow near the summit of Cairn Gorm

10. What is the temperature at the top of the mountain??
Mt Kilimanjaro is 5895m
Maximum Temperature in Moshi is 26⁰C. Moshi is located 800m above sea level.
What is the temperature at the top of the mountain??
Numeracy task.
5895m-800m= 5005m
5000m ÷ 100m/ ⁰C = 50 ⁰C
26 ⁰C -50 ⁰C = -24⁰C

11. 26⁰C
-24⁰C
800m
5895m

12. As well as this, ocean currents can bring cold or warm water.
4. Distance from the sea
Oceans heat up and cool down much more slowly than land. This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude.
As well as this, ocean currents can bring cold or warm water.
St peters
Moscow is at about the latitude as Edinburgh!

13. It’s why you can see palm trees in Ullapool and Plockton!
- A warm ocean current called the North Atlantic Drift keeps Britain warmer than it should.
It’s why you can see palm trees in Ullapool and Plockton!

14. Plenary – Quiz Masters
Each table has 4 question cards
Each take a card and take turns quizzing the people in your group about today’s lesson.