1. Good morning! BELL Work (5 min.) Set up today’s pages – 78-79 Copy these questions under the IN to answer during a video clip: Intro to Greenhouse effectIntro to Greenhouse effect 1.List two possible outcomes of rising global temperatures. 2.What simple changes can we make? Then, Get your book from the back cabinet. Under pressure?

2. Explain how the atmosphere protects life on Earth using the greenhouse effect. Describe the possible effects of increased temperatures on Earth caused by trapping of “greenhouse gases.” Level 4 I can compare and contrast the four major layers of the atmosphere (troposphere, stratosphere, mesosphere, and thermosphere) in terms of temperature and pressure and explain how they contribute to life on Earth. Level 3 I can list the four layers of the atmosphere, explain how temperature and pressure change in each layer, and describe how it protects life and insulates our planet. Level 2 I can list the layers of the atmosphere and how they protect life on our planet. Level 1With help I can explain how the atmosphere protects our planet.

3. Complete using our Fusion book, p. 568-571. It protects us from Sun’s harmful radiation and maintains “just right” temperature range. We must have the right temperature to have liquid water. It is held in place by gravity. The measure of the force with which air molecules push on an area of a surface. Air pressure decreases with increasing altitude. There are fewer molecules of air so the amount of Oxygen is less. Uppermost layer where gases absorb high energy solar radiation. decreases increases Middle layer and one of coldest. Meteoroids burn up at the bottom. decreases Ozone absorbs UV radiation. decreases increases Densest layer that contains all water vapor, clouds, weather, pollution. decreases

4. Let’s read – turn to p. 572

5. Quick Video – testing the greenhouse effect

6. Complete Lesson Review on p.575 and attach to page 79 in notebook.  Song Song

7. atmosphere Air pressure Greenhouse effect Nitrogen, Oxygen, carbon dioxide stratosphere No Ozone = no life Due to no protection from the sun No, gases absorbing solar radiation cause temperatures to increase or decrease. It’s like adding a thicker blanket which would trap more heat.

8. Troposphere (our layer) The farther up you are from Earth’s surface the lower the pressure because gravity is weaker and the mass of gases above is less. Thermosphere It feels cold because the density of particles that transfer energy is very small (Very low pressure) X -35 ° C About 35 degrees

9. Level 4 I can compare and contrast the four major layers of the atmosphere (troposphere, stratosphere, mesosphere, and thermosphere) in terms of temperature and pressure and explain how they contribute to life on Earth. Level 3 I can list the four layers of the atmosphere, explain how temperature and pressure change in each layer, and describe how it protects life and insulates our planet. Level 2 I can list the layers of the atmosphere and how they protect life on our planet. Level 1With help I can explain how the atmosphere protects our planet. Greenhouse Venus? Why is Venus the hottest planet in our Solar system even though it’s not the closest to the Sun?

10. Level 4 I can compare and contrast the four major layers of the atmosphere (troposphere, stratosphere, mesosphere, and thermosphere) in terms of temperature and pressure and explain how they contribute to life on Earth.

11. Level 3 I can list the four layers of the atmosphere, explain how temperature and pressure change in each layer, and describe how it protects life and insulates our planet.

12. Level 2 I can list the layers of the atmosphere and how they protect life on our planet.

13. Level 1 With help I can explain how the atmosphere protects our planet.