Review for Quiz Friday 9/14

Heat Transfer Radiation – transfer of heat through waves Example: Sun heating the Earth Convection – transfer of heat by the movement of fluids (cold sinks, hot rises) Example: Boiling water Conduction – transfer of heat through direct contact Example: Touching a hot stove Heat Transfer

4. Darker material absorbs more heat because it reflects less light. 5. Lighter material absorbs less heat because it reflects more light. 6. Land heats up faster than water 7. Land cools down faster than water 8. Inland cities have more of a temperature difference between night and day than coastal cities 9. Inland Cities have hotter summers and cooler winters than coastal cities Radiation

Convection 10. Warmer fluids rise because they are less dense Warmer fluid molecules are farther apart which makes them less dense 11. Cooler fluids sink because they are denser Cooler fluid molecules are closer together and more compact which makes them denser Convection

Density 12. Mass/Volume = Density Mass – amount of matter in an object Volume – amount of space an object takes up Density – amount an matter (stuff) in a given volume 13. The densest objects are found at the bottom 14. The least dense objects are found at the top Density

15. Most of the sun light is either reflected or absorbed by the atmosphere Less sunlight reaches the Earth’s surface during a cloudy day which makes it cooler. The thicker clouds can absorb more sunlight. 16. Only half of the sun’s energy is absorbed by the land and water and changed into heat. 17. During the night the Earth’s surface releases heat absorbed during the day to keep the Earth warm Sun’s Energy

18. The Greenhouse Effect is the process in which heat is trapped in the atmosphere by gases that form a blanket around the Earth. Greenhouse Effect