2. * What do you need to know to better understand weather? * List List

3. * Definition * Gases * Aerosols * Why is it essential for life? * Nutrients * Protection for Sun * Regulates temperature * Weather vs. Climate

4. 1. Compare and contrast weather and climate. 2. Why do we need an atmosphere? 3. What is an aerosol? 4. Write observations and inference (hypothesis) about the demonstration you were shown. End

5. * Which of the lab stations showed that air is matter? * What was the evidence in that station? * Conclusion * Takes up space and has mass

6. * aka air pressure * Caused by * Units * 14.7 psi * Why aren’t we crushed? * Air pushing out * Used to it

7. * Amount of gas * Less gas = ? pressure * Why? * Where does this happen? * Volume * Less volume = ? pressure * Why? * Where does this happen?happen * Temperature * Lower temperature = ? pressure * Why? * Where does this happen?happen * Opposites are also true * Explain what happened to the can

8. * Air moves from high pressure to low pressure * Wind * Larger pressure differences = stronger winds * Named for direction * Wind chill Wind chill * What temp. feels like to us * Humans only * Cause * Related to dangerousness of wind and cold temp. * Frostbite * Hypothermia