Across
- 4. The rate at which energy is used or transferred.
- 5. The rate at which something moves.
- 7. A bend or distortion in shape or space.
- 8. A system that propels a vehicle forward.
- 12. Anything that has mass and takes up space.
- 15. The vast, seemingly infinite expanse beyond Earth.
Down
- 1. A scientific explanation based on evidence.
- 2. A region influenced by a physical quantity like gravity.
- 3. A push or pull that changes motion.
- 6. Electromagnetic radiation visible to the human eye.
- 9. A dimension used to measure change and events.
- 10. The amount of matter in an object.
- 11. A theoretical way to bend space for faster travel.
- 13. The force that moves a spacecraft forward.
- 14. The capacity to do work or cause change.