1. Weather The condition of the atmosphere at a given place

2. Humidity The amount of water vapor in the air

3. Air Pressure The weight of the atmosphere pressing down on the Earth’s surface

4. Barometer A weather instrument used to measure changes in air pressure

5. Wind The movement of air from areas of high pressure to areas of low pressure

6. Global Winds Winds that blow over large areas of Earth – they blow from the tropics toward the poles

7. Local Winds Winds that move short distances and can change directions

8. Anemometer a tool that measures wind speed

9. Wind Vane A tool that measures wind direction

10. Sea Breeze Cooler, high-pressure air that flows over the water to the land

11. Land Breeze Cooler, high-pressure air that flows from the land to the sea

12. Cirrus Clouds Thin, cold clouds made up of ice crystals

13. Stratus Clouds Thick, wet looking clouds that cover the sky with a sheet of gray

14. Cumulus Clouds Puffy, white clouds that usually form in the afternoon on hot, sunny days