Across
- 1. Newton's first law
- 4. Hydro electricity is a type of ......... energy
- 6. The force that keeps objects held to the ground
- 7. 'For ever action there is an equal and opposite ........'
- 9. A type of fossil fuel
- 10. Is equal to mass times acceleration
Down
- 2. The flow of electrons
- 3. Renewable energy from the sun
- 5. Carbon dioxide is a ....... gas
- 8. A type of energy that has incredibly dangerous waste