1. Explain evaporation in detail. (use density, weight and temperature)
Do Now # pg. 50
Explain evaporation in detail.
(use density, weight and temperature)
Why do clouds form?
Make sure this slide is open as the students come into class. They should start immediately. DO not waste time they have a lot to complete. Give them about 5 minutes to complete this.
Call on volunteer to answer questions. Move through this quickly.

2. (they will be collected at the end of the video)
Watch Bill Nye Video and complete the video notes
(they will be collected at the end of the video)
Click here for video
Pass out video notes and then click on video
After video collect and put on the TA desk for them to grade.

3. Group Model (put your desks into groups)
Work with your group to create a model of what is happening at a:
Low pressure system (L)
High pressure system (H).
Include: pressure, density, temperature and weather
Reminder: When we create models we always include:
A drawing
Clear labels
Description
Pass out poster paper and have them work in their assigned groups to create posters.
Have them put period and group number on the back. Collect them and stack them in the side table by period.

4. Homework:
Add any new information you gained from your group to your final Model on Pg49L.
High Pressure
Low Pressure
Be sure to clean up and remind them of the homework 5 minutes before the end of the period.

5. Put Desks back into rows and clean up around you!