Across
- 2. How well a rock can store liquid or gas
- 3. Using our resources in a way that helps them last much longer
- 5. How easily liquid or gas can pass through a rock
- 7. Turning old materials into new ones
- 8. Using something more than once instead of throwing it away
- 9. Resources like coal that are made from the remains of ancient dead plants and animals
Down
- 1. Resources that will not be replaced in our lifetime and will run out
- 4. Not using more resources than we have to
- 6. Resources that can be easily replaced or we will not run out of