Across
- 2. everything that exists, including all the stars and planets in space
- 4. be different from each other
- 5. a device scientists use to learn about space
- 8. how hot or cold something is
Down
- 1. how far two things are from each other
- 3. centimeter, inch, degree, minute...
- 6. where the planets and stars are
- 7. go around