Across
- 2. The long word for what you call people on.
- 3. The movement of particles through a medium to that creates 'sound'.
- 5. What a wave needs to move through; can be solid, liquid or gas.
- 8. large grey mammal that has a trunk.
Down
- 1. Rapid 'back and forth' movement that can make noise.
- 3. Long wiggly stuff used to tie tings up.
- 4. How often something happens.
- 6. Cannot be destroyed or created, only changed in form.
- 7. The things you hold drinks in.