1. 1

2. Temperature 2

3. The temperature of the air greatly affects the weather 3 Vocabulary: temperature A measure of how hot or cold something is

4. 4 Energy from the sun travels through the atmosphere to Earth About half of the sun’s energy hits the surface of Earth

5. Some of the energy warms Earth’s surface 5 Part of the sun’s energy is reflected by clouds and dust in the air

6. 6 Heat from Earth’s surface warms the atmosphere around it

7. 7 Temperature is measured in degrees using a thermometer Vocabulary: degrees A unit for measuring temperature

8. 8 The higher the number of degrees the warmer the atmosphere

9. 9 Two scales of degrees are used on thermometers to measure temperature

10. 10 One is the Celsius scale Based on 0 0 as melting point and 100 0 as boiling point Anders Celsius

11. The other is the Fahrenheit scale 11 Gabriel Fahrenheit

12. 12 On a very hot day, the temperature may reach close to 100 degrees Fahrenheit This would be about 38 degrees Celsius

13. This would be 0 degrees Celsius 13 Water freezes at 32 degrees Fahrenheit

14. 14 Average room temperature is 72 degrees Fahrenheit C = (F - 32) · 5/9

15. 15 So 72 degrees can also be written as 72 0 In place of the word “degree”, you can draw a small circle Type a zero then highlight Click on “format” “font” “superscript”