Across
- 4. A closed ecosystem made by humans.
- 6. A set of interacting parts forming a complex whole.
- 8. When plants use sunlight to change Carbon Dioxide into Oxygen and Glucose.
- 9. To move from one object to another or one place to another.
- 14. A type of magnet in which the magnetic field is produced by an electric current.
- 17. A molecule made of Carbon and Oxygen atoms.
- 18. To provide evidence that goes against a claim.
- 19. To push objects away from each other.
- 20. A line that connects opposite magnetic poles and represents the strength and direction of the magnetic field.
Down
- 1. One of two opposite ends of a magnet.
- 2. An organism that makes its own food.
- 3. The energy that is stored in an object or system.
- 5. To separate or set apart.
- 7. The space around a magnet in which magnetic forces can act on objects.
- 10. A push or a pull that can change the motion of an object.
- 11. The energy that an object has because it is moving.
- 12. Something that can be changed and may be measured.
- 13. To change from one type to another.
- 15. An organism that eats other animals.
- 16. To pull objects toward one another.