Air Pressure and Wind Review – Flashcards Directions: Cut out each question (paste on index card optional) and record the answer on the back. 1. What is Air Pressure? 13. Draw a diagram of a Land Breeze 2. What is a Barometer? 14. Why is there higher pressure over the land surface during the night? 3. What is an Isobar? 15. What is Radiation? 4. Why are isobars used to map pressure? 16. What is Conduction? 5. Other than altitude/elevation, what causes differences in air pressure? 17. What is Convection 6. Diagram a High showing the vertical and surface winds. 18. What happens to molecules in a liquid or a gas when it is heated? 7. Diagram a Low showing vertical and surface winds. 19. How does density affect fluid movement? 8. What is a Pressure Gradient? 20. Draw a diagram illustrating convection currents. 9. The movement of air from High to Low pressure is called? 21. Why is radiation the only method of heat transfer through outer space? 10a. Which absorbs & more heat, land or water? 10b. Which radiates more heat, land or water? 22. Earth’s surface is heated by which heat transfer method? 11. Draw a diagram of a Sea Breeze 23. The air above the surface is heated by which heat transfer method? 12. Why is there lower pressure over the land surface during the day? 24. Which heat transfer method drives land & sea breezes?