1) Hurricanes form over warm ocean waters through the rising of warm, moist air that causes atmospheric pressure changes and wind circulation. 2) The document discusses hurricane formation through warm and cold air movements, with warm moist air rising from the ocean to form tall cumulus clouds in a counter-clockwise spiral shape. 3) Students are tasked with creating a pop-up hurricane model to demonstrate how hurricanes form through ascending warm air and descending cool air.

1. Hurricanes Lesson Objectives To briefly understand what a hurricane is and how they are formed

2. Starter What is a hurricane? Discuss with your partner and write a short definition into your books. Definition: Hurricane - A severe tropical storm , with low pressure, heavy rainfall and winds capable of causing widespread damage

3. Success criteria In order to be successful you must; Be able to briefly describe how a hurricane is formed. Successfully create a pop up hurricane

4. Pop-up Hurricane cross-section Image: NASA -CC

5. Hurricane cross-section 1

6. Hurricane cross-section 2

7. Hurricane cross-section 3

8. Hurricane cross-section 4 1 7 5 3 4 2 6

9. Hurricane cross-section 5

10. Hurricane cross-section 6

11. Hurricane cross-section 6

12. Hurricane cross-section 7

13. Hurricane cross-section 8 Hurricane cross-section 1 7 5 3 4 2 6 Warm moist air ascending from the ocean. The Eye Wall- precipitation and wind is greatest here. Cooler drier air descending. The Eye - the calmest part of the hurricane. Warm moist air spirals in an anti-clockwise direction. Tall cumulus clouds. A Rain Band , produces bursts of heavy rainfall and wind. Key? Key? Warm air movements Cold air movements

14. Hurricane forming How hurricanes work

15. How does a hurricane work? Using your pop up hurricanes and the following animation explain in a paragraph how hurricanes form.

16. Success criteria Have you been successful? In order to be successful you must; Be able to briefly describe how a hurricane is formed. Successfully create a pop up hurricane