1. CONVECTION What is Convection? HEAT TRANSFER

2. What is convection A process of heat transfer where hot material from below rises upward due to its lower density while cooler material above sinks because of its higher density.

3. HEAT TRANSFER Learning Objectives To know how convection occur To know why convention doesn’t happen in solid. To know where convection is important

4. Convections in gases How does convection occur?Use the above diagram to explain your answer.

5. Convection in Liquids Explain what is happening in the above diagram.

7. Investigating Convection page 234 Teacher Demonstration

8. How Convection works Ask a volunteer to read how convection works on page 235 Copy key point and answer Q1, Q2 and 3

9. The importance of Convection Give 3 Examples of the use of convection and explain your answers.

10. Sea Breezes