Across
- 3. States that the universe started as a single, dense, hot point and has been expanding ever since.
- 6. When an object in space is moving away from Earth.
- 7. Tool used to identify elements found in space.
Down
- 1. Colored lines that are used to identify gasses in space.
- 2. The temperature that the universe started at when the Big Bang occured.
- 4. Objects in universe moving towards Earth
- 5. The law that states the further away a galaxy is, the faster away they are moving.
- 6. Which color has the longest wavelength?