Across
- 3. Pushing or pulling an object
- 6. It is a group of stars and planets
- 9. It is a moving of many electrons in one direction
- 12. The most smallest part of the materials
- 13. He had discovered a gravitation
- 14. It is a force
Down
- 1. Work which has been done in per second
- 2. Smth. that you use for correct eyesight vision
- 4. Measurment of how much energy can body contain
- 5. Is a beam of electromagnetic energy
- 7. Used to see objects which are far way
- 8. Describes the hottest or coldness of an object
- 10. Protons and neutrons
- 11. It is a line which has a beginning and direction
- 15. It is a very hot spher