Layers of the atmosphere computer lab. Use the links to answer the questions that follow on a piece of notebook paper, DCN style. You will have two class period to complete this.
Cozy Blanket Around Earth 1. Which four gases are most common in Earth's atmosphere? Give the percentages. 2. What are the four main layers of the atmosphere? 3. Which layer is closest to space? 4. Which is the hottest layer? 5. Which is the coldest layer? 6. Why do you think the the layers are often called a "Cozy Blanket Around Earth."
The Seasons The Seasons animation (requires Flash player...you may have to borrow another computer) 7. If the Sun is to the right of the Earth picture, which season are we (in the northern hemisphere) having? 8. The Earth is titled on its axis (like Mr. Dunn's globe). At what angle is it tilted? 9. How long does it take for Earth to orbit around the Sun? 10. When the Earth orbits the Sun, is that rotation or revolution? 11. When are the solstices and equinoxes each year? 12. Name one thing that you enjoy doing outside during each of the equinoxes and solstices.