1. Happy Thursday! BELL Work (4 min.) Set up today’s pages 20-21 Under the IN on the top of page 20, Copy the questions below to answer during a short video about Convection. 1.Why are lava lamps a good example of convection? 2.Explain why hotter substances rise and cooler substances sink. 3.What are convection cells and what do they cause? Then, Get your book from the back cabinet.

2. Explain how HEAT is transferred by conduction, convection, and radiation. Give specific examples of conduction, convection, and radiation on our planet. Level 4 I can compare and contrast amongst conduction, convection, and radiation and give specific examples of how they occur in real life including how they are used for thermal protection and during the formation of weather. Level 3 I can differentiate among radiation, conduction, and convection, the three mechanisms by which heat is transferred through Earth’s system. Level 2 I can identify examples of conduction, convection, and radiation. Level 1With help I can explain that heat transfers in different ways by conduction, convection, and radiation.

3. Video questions. 1. Why are lava lamps a good example of convection? 2. Explain why hotter substances rise and cooler substances sink. 3. What are convection cells and what do they cause?

4. What type of heat transfer are you modeling? Why?  Take the foil and carefully connect the ends of the battery. WARNING! – you could burn or shock yourself if you hold it too long. So please… Let it go!! Heat transfer in a battery?

5. Foldable Check – p. 19 Radiation: Energy is transferred by Electromagnetic waves that can move through empty space. Examples on Earth Radiation from SUN warms Earth and drives the water cycle. Con v ection: Con d uction: Convection example on Earth: Conduction example on Earth: Energy is transferred by movement of matter This occurs because warmer fluids are less dense and rise up. Earth’s warm surface transfers energy to the cooler air. Warm air then rises because it is less dense and the cooler air sinks. The transfer of energy from one object to another by direct contact. Geosphere to atmosphere when cooler air molecules come in direct contact with warm ground.

6. Take out p. 589, complete, and attach to p. 21 THROUGH  Try each question without your notes first before using your notes.  Be ready for me to check your foldable!

7. Let’s Check – top half Transfer of Energy by Electromagnetic waves Transfer of Energy by movement of matter. Transfer of Energy because of direct contact Heat energy transfers through the utensil by conduction It takes more energy to change the temperature of water compared to sand.

8. Let’s Check – bottom half Temp. – average kinetic energy Thermal Energy – total kinetic energy Heat – transfer of energy between objects at different temps Space between particles increases as temperature increases. The SUN! Energy transfers by conduction Happens when ground touches air Air circulates in the atmosphere Oven burner to the air. Stovetop touches the pot Circulation of boiling water

9. Explain what types of heat transfer can occur as you hold this hot cup of hot chocolate. Level 4 I can compare and contrast amongst conduction, convection, and radiation and give specific examples of how they occur in real life including how they are used for thermal protection and during the formation of weather. Level 3 I can differentiate among radiation, conduction, and convection, the three mechanisms by which heat is transferred through Earth’s system. Level 2 I can identify examples of conduction, convection, and radiation. Level 1With help I can explain that heat transfers in different ways by conduction, convection, and radiation.

10. Coming soon - Hot Air balloon?  Out of tissue paper?????  Video link Video link

11. Level 4 I can compare and contrast amongst conduction, convection, and radiation and give specific examples of how they occur in real life including how they are used for thermal protection and during the formation of weather.

12. Level 3 I can differentiate among radiation, conduction, and convection, the three mechanisms by which heat is transferred through Earth’s system.

13. Level 2 I can identify examples of conduction, convection, and radiation.

14. Level 1 With help I can explain that heat transfers in different ways by conduction, convection, and radiation.