1. Air Pressure

2. What is air pressure?
Watch this video and this video. After the video you will be making a group definition of air pressure.

3. Create a definition of Air Pressure with your group.
Write it down on 72 R
Be prepared to share out.

4. Add air pressure to your glossary.
Air pressure is the force exerted onto a surface by the weight of the air.
Air pressure is the force exerted by air, whether compressed or unconfined, on any surface in contact with it.

6. Why when you dive down deeper into the water your ears hurt and you feel like your body is being squished? Add to pg. 72R

7. Why do astronauts need a spacesuit and not just a space helmet
Why do astronauts need a spacesuit and not just a space helmet? Add to page 72R
Video on air pressure and space.

8. Which is heavier cold air or hot air
Which is heavier cold air or hot air? Draw and explain your reasoning R
Cold
Hot

9. Does the density of the air affect the amount of air pressure
Does the density of the air affect the amount of air pressure? Why or why not?

10. Will hot air apply more air pressure or cold air?

12. Density vs Temperature of air pressure.
Less Dense
Lighter
Rises
Low pressure
Hot
Cold H L
More Dense
Heavier
Sinks
High Pressure

13. 1. Why do you think cold dense air creates more air pressure and hot less dense air creates less air pressure? H L

14. Let's look at 2 more videos about air pressure.

15. Air pressure pushes in all directions!

16. 2. Looking at the weather map, what type of weather is occurring around the Low pressure (L) system?
3. High Pressure (H)

21. 4. Circle the correct words to complete the sentence.
Cold more dense air sinks/rises and brings clear skies/ precipitation.
Warm less dense air sinks/rises and brings clear skies/ precipitation.

22. Create a Model Pg. 46L
At the top of the page create a model of a balloon in a container of room temp air warm air and cold air be sure to show and explain air pressure!!!
Use fatter arrows to show more pressure and skinny arrows to show less pressure.

23. CER Pg.46L
On page 46L make a CER as to the relationship between temperature and pressure.

24. Go to wunderground.com to complete the data table
Enter Culver City into the search location
Click on Full forecast
Choose History
Pick July 11,2016 and record (in table 1) 3 different temperatures and the pressure for that temperature.
Do the same for December 30, 2016 and a date of your choice.
Reorganize your data in table 2 so that your temperatures are in order from lowest to highest. temperatures.

25. Create 2 data tables under your definition on page 46R
Temperature (F)
Pressure (in)