Solar System Study Guide

Questions
1. The Soviet Union was the first country to do what?

2. What is a revolution?

3. What is Isaac Newton known for?

4. Why does the sun appear to rise and set?

5. What is Ptolemy known for?

6. What are the outer planets, except for Pluto, made up of?

7. What is Copernicus known for?

8. The suns gravity causes the planets to do what?

9. What is Yuri Gagarin known for?

10. The Hubble Telescope was the first what?

11. What is an orbit?

12. What are stars made up of?

13. What is the difference between space shuttles and early manned space orbiters?

14. What did project Apollo do?

15. What is John Glenn known for?

16. What happens when the moon passes between the Earth and the sun?

17. Why does the moon orbit the Earth?

Answers
1. To launch an artificial satellite into space
2. When the earth makes one full orbit around the sun
3. "Discovering Gravity"
4. Because of the earth's rotation
5. Believing that the earth was the center of the solar system
6. Mostly gases
7. Being the first to say that the sun is the center of the solar system
8. To orbit the sun
9. Being the first person in space
10. The first general purpose orbiting observatory
11. The path that a planet takes as it moves around the sun
12. Hot gases
13. Space shuttles can be used again
14. It landed people on the moon
15. Being the first American to orbit the Earth
16. There is a solar eclipse
17. The moon has less mass than the Earth