Across
- 1. Parts of an object moving in opposite directions.
- 5. Materials we use to produce energy.
- 7. The equal and opposite force in an interaction.
- 9. Temporary change in shape (like a rubber band stretching).
- 11. A force applied by a person or object.
- 12. A force that twists an object.
- 14. Resources that can be replaced in a human lifetime.
- 15. A force caused by stretched elastics or springs.
- 17. A force that squeezes or compacts an object.
- 18. The world around us—land, air, water, organisms.
- 20. How easy a resource is to reach and collect.
- 21. The opposite of temporary change; the object stays bent.
- 22. Resources that cannot be replaced quickly.
Down
- 2. Getting land back to its original state after extraction.
- 3. A force that resists motion when two surfaces rub.
- 4. The initial direction of a push or pull in an interaction.
- 6. When a resource can be used in its natural form.
- 8. Considering nature, cost, and society when choosing a resource.
- 10. Energy made by processing many resources.
- 13. When a resource is changed before being used.
- 16. A pulling force through a rope or string.
- 19. Forces that act inside an object.
