Quiz

1. What is light?
2. What is matter?
3. How do light and matter interact?
4. What are the three basic types of spectra?
5. How does light tell us what things are made of?
6. How does light tell us the temperatures of planets and stars?
7. How does light tell us the speed of a distant object?
8. How do telescopes help us learn about the universe?
9. Why do we put telescopes in space?
10. How is technology revolutionazing astronomy?