Across
- 2. Sound ________ travel through a vacuum because there are no particles to vibrate.
- 5. True or false? Sound travels more slowly than light.
- 6. a car burning petrol turns chemical energy into _______ energy
- 8. used to power machines and can be transformed into other types of energy
- 10. we burn these to produce electrical energy; they come from under the ground and include coal, oil and gas
- 11. most comes from the sun
Down
- 1. produced through motion or movement
- 3. True or false? Light travels very slowly
- 4. the numbers of types of energy
- 7. When light is absorbed, it transforms into _______ ______ .
- 9. there are 6 forms; it makes things move and powers machines