1. If the Earth were to spin around its axis twice as fast as it does right now, what would happen?
2. Look at the image on the right. If the Sun is in this position in the sky, what time is it most likely?
3. The image on the right shows the path of the Sun across the sky during different seasons when viewed from the Earth. Which season does each path represent?
4. The Moon appears to change shape during the month because _____________.
5. This graph shows the average number of daylight hours during each month of the year in San Francisco, California. (San Francisco is in the Northern Hemisphere.) Which months in the graph are the summer months?
6. Why do you think these are the summer months? Support your answer to Question 5 with reasoning.
7. You look up at the night sky and see the constellation Scorpius. What season is it?
8. Why can’t you see the constellation Orion during the summer? Support your answer with reasoning.
9. Draw arrows to show which direction gravity will pull each person.
10. These two photographs of the same dog were taken in two different seasons. Which photograph, A or B, was taken during winter? Why do you think this? Support your answer with reasoning
11. Sometimes people make simple drawings of our Solar System like this one below. But now that you know more about the planets, what details does this drawing leave out?
12. The picture on the right shows the same person jumping as high as they can on two imaginary planets, Creon and Grumpia. Which planet has more gravity? Support your answer with reasoning.
13. The image below shows a solar system with one star (on the left) and five planets. Which of these planets are located in the habitable zone? How do you know? Support your answer with reasoning.