Changes in Weather (pg611)

- PPTX

Also included in
- This is a bundle of all of the lessons, labs, PowerPoints, and worksheets for Unit 6: Earth's Systems. The bundle also includes the Unit 6 Test and its answer key. For a walkthrough of the unit, including pictures and videos, please click here.Price $14.99Original Price $19.00Save $4.01
- This bundle includes an entire year's worth of material. It includes lessons, labs, projects, tests and more. The seven units include are as follows:Unit 1 - Forces and MotionUnit 2 - ChemistryUnit 3 - GeneticsUnit 4 - EvolutionUnit 5- AstronomyUnit 6 - Earth's SystemsUnit 7 - Environmental ScienceTPrice $100.00Original Price $139.00Save $39.00
Description
Weather has three main components. The first is temperature, which is simply a measure of how fast atoms/molecules are moving. The second is wind, which is caused by the uneven heating of Earth’s surface, which creates convection currents. We have covered both of those components already in Unit 6. The last component was new today: clouds & precipitation. When two air masses collide, and one has a high density and the other has a low density, clouds & precipitation form. The low-density air mass is pushed skyward where it cools off rapidly. Then water in the air mass condenses; because of the drop in temperature the molecules slow down and cling together, forming droplets. If these droplets are small and light they stay in the air as clouds. If they get heavy enough they can fall as rain, sleet, or snow.