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Chapter 2 Section 1 pages 36-43

Water in the Air. Chapter 2 Section 1 pages 36-43. ~Focus points~ weather water cycle 3 forms of water humidity evaporation condensation dew point cloud precipitation . Weather.

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Chapter 2 Section 1 pages 36-43

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  1. Water in the Air Chapter 2 Section 1pages 36-43 ~Focus points~ weather water cycle 3 forms of water humidity evaporation condensation dew point cloud precipitation

  2. Weather • The condition of the atmosphere at a particular time and place.

  3. H2O ~Water Cycle~ • Continuous movement of water from water sources into the atmosphere, and back onto/into ground and back to water sources.

  4. 3 Forms/States of Water 1. Solid~~~~~~~~~~~~~ 2. Liquid~~~~~~~~~~~~ Gas~~~~~~~~~~~~~~~~~~~ 3.

  5. Humidity & Relative Humidity Humidity: Amount of water vapor or moisture in the air. Relative Humidity (%): amount of moisture the air contains compared to amount it can hold.

  6. Evaporation • Liquid changing into water vapor (gas). • Rising into atmosphere. • Example- wet-to-dry chalkboard

  7. Transpiration Watervapor • The process where plants release water vapor into the air through their leaves.

  8. Condensation • Process of water vapor (gas) becomes a liquid. • This happens during 100% relative humidity when air cools. Example: shower mirror moisture

  9. Air around the glass cooling Dew Point • Temperature that the air must cool to, to be completely saturated. • Ex: Ice in a glass cools the surrounding air. The glass gives the water vapor a surface to condense on.

  10. Cloud • Collection of million water droplets or ice crystals • Forms as warm air rises • 3 Types • 1. Cummulus • 2. Stratus • 3. Cirrus

  11. Precipitation • 4 types • Water that falls from the atmosphere to the Earth • 1. rain - liquid water 2. snow - frozen water • 3. sleet - freezing rain (winter) 4. hail - balls of ice (spring/summer)

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