Science vocab

3. A period of moderate tides when the sun and the moon are at right angle from each other.
4. a spectrum of electromatic radiation
7. a shift of wavelength in the Electromagnetic spectrum.
9. A faint star of enormous density
11. a device used to separate light into different wavelengths
15. a reaction where the nuclei come together to form a large nucleus
16. the distance light travels in space for a year
18. a star that has collapsed
20. a group of solar sytems
21. a graph that shows the heat of a star

1. The theory that the universe began at one point and has been expanding and cooling every since
2. The spring movement of the tide during a new moon or full moon
5. the movement of the earths ocean due to the gravity of the moon
6. how much something is pushed on by gravity
8. where a star explodes
10. a probe that we send in space to collect pictures
12. everything we know exists in here
13. An immense cloud of gas in interstellar space.
14. A rotating circumstellar disk of gas around a newly formed star.
17. the force that pulls us to the ground
19. a burning ball of a gas that produces light