Across
- 2. All existing matter and space, or the cosmos.
- 5. The basic unit of a chemical element.
- 7. Throughout, or ever-present.
- 8. Force attracting matter toward Earth's center.
- 9. One with extensive knowledge of mathematics.
- 10. Smaller than, or occurring within an atom.
- 12. A group of atoms bonded together.
- 14. A system of billions of stars and gases.
Down
- 1. To navigate or find ways around.
- 3. Relating to or belonging to planets.
- 4. Action of mathematical calculation.
- 5. Study of origin of life in the Universe.
- 6. Scientific study of matter and energy.
- 11. The level in acid found in substances.
- 13. Chemical element of an atomic number.