1. Earth Science Unit Overview: Chapter 4 – Earth’s Water Lesson 1 – Earth: The Blue Planet Lesson 2 – The Water Cycle Lesson 3 – Fresh Water Resources Lesson 4 – California’s Water Supply Chapter 5 – Earth’s Weather Lesson 1 – Earth’s Atmosphere Lesson 2 – Air Current and Wind Lesson 3 – Ocean’s and Air Temperature Lesson 4 – Severe Weather Lesson 5 – Predicting Weather Chapter 6 – The Solar System Lesson 1 – The Sun Lesson 2 – The Structure of the Solar System Lesson 3 – Gravity and Orbit

2. Earth’s Atmosphere Lesson Overview: 1) What do we already know? (BrainPop)BrainPop 2) Vocabulary 3) Drawings 4) Main Ideas 5) Review Earth’s Weather: Lesson 1

3. Earth’s Atmosphere What do we already know? BrainPOP Teaser BrainPOP Teaser 1)Where does California’s fresh water come from ? a) b) c) 2)How is fresh water supplied to Californians? a) 3) How can California save water ? a) Page 1 Earth’s Weather: Lesson 1

4. Earth’s Atmosphere: Vocabulary Part I 1) atmosphere: the air that surrounds Earth 2) troposphere: the lowest level of the atmosphere that all life exists in 3) Air pressure/Atmospheric pressure: the weight of the air that presses on Earth’s surface 4) altitude: the height above Earth’s surface Page 2 Earth’s Weather: Lesson 1

5. Earth’s Atmosphere: Vocabulary Part II 5) humidity: the amount of water vapor in the air 6) barometer: is an instrument that measures atmospheric pressure Page 2 Earth’s Weather: Lesson 1

6. Earth’s Atmosphere: Drawings (pg. 235) Page 3 Earth’s Weather: Lesson 1

7. Earth’s Atmosphere: Drawings (pg. 236 ) Page 4 Earth’s Weather: Lesson 1

8. Earth’s Atmosphere: Drawings (pg. 237 ) Page 4 Earth’s Weather: Lesson 1

9. Earth’s Atmosphere: Main Ideas 1)What is air pressure? (pg. 234-235)  a) The amount of pressure that air molecules are exerting on the molecules below them. Quick Check (pg. 235) -What layer of our atmosphere are 99% of the oxygen and all life found? a) troposphere Page 5 Earth’s Weather: Lesson 1

10. 2) How does temperature affect air pressure? (pg. 236-237)  a) When temperature increases, air pressure decreases. When air temperature decreases, air pressure increases. Quick Check (pg. 237) -How does altitude affect air pressure? a) The higher the altitude the lower the air pressure. The lower the altitude the higher the air pressure. Earth’s Atmosphere: Main Ideas Page 6 Earth’s Weather: Lesson 1

11. 3) How does volume affect air pressure? (pg. 236)  a) The more volume the lower the air pressure. The less volume the higher the air pressure. Quick Check (pg. 237) -The amount of water vapor in the air is called?  a) humidity Earth’s Atmosphere: Main Ideas Page 7 Earth’s Weather: Lesson 1

12. Earth’s Atmosphere: Review 1)Summarize the main ideas 1)Click to Watch!Click to Watch! 2)Think, Talk, and Write Page 8 Earth’s Weather: Lesson 1