1. By: Ben and Sae Astronomy Exploration

2. Seasons Spring Summer Autumn Winter

3. Reasons For The Seasons There are seasons because the earth revolves around the sun and the earth’s tilted at 23.5 degrees, causing the different parts of the earth to receive different amounts of sunlight.

4. Key Vocabulary ●Revolve: When the earth orbits around the sun or the moon orbits around the earth ●Rotate: When the earth spins on its axis

5. How Does Seasons Affect Us? How we travel changes: during winter, traveling is more dangerous and difficult with icy roads, snowstorms with strong winds, and airplane cancellations

6. We get days off during snowstorms(yay), but when there is too much snow, we have to help our parents shovel(oh no)! How Does The Seasons Affect Us? (2)

7. Sun: ● makes up more than 99% of the solar system ●about 110 times wider than the earth ●1,300,000 Earth can fit in the sun

8. Moon: ●¼ of the size of the earth ●tide occurs mainly because of moon’s gravity, which is ⅙ of the earth’s ●has mountains, valleys, and plain surfaces (2)

9. What’s up? No person, even if she/he’s on south pole or north pole on the earth falls off from the earth because of its gravity. “Up” is not the same for everyone--where you are affects the “up.” The sky you can see is your “up.”

10. Thanks for watching! By: Ben and Sae