Across
- 2. The planet that is closest to the sun.
- 3. A particle that is part of an atom.
- 7. A metal that is magnetic.
- 9. A thing that is a wave as well as a particle.
Down
- 1. A thing that consists of multiple atoms.
- 4. A concept that Einstein is famous for (Theory of...).
- 5. A person who is said to have been inspired by an apple.
- 6. A thing that has the unit m³.
- 8. The part of physics that studies light.
- 10. The force that makes us spin around the sun.