Across
- 2. A part of a plant that is often flat and green.
- 6. A physical trait or behavior that helps a living thing survive in its environment.
- 11. All the living and nonliving things in a particular place.
- 12. The thick middle part of a tree.
- 13. A pretend version of something that scientists use when the real thing is too big, small, or complicated to work with.
Down
- 1. The inside of something, including the inside of living things.
- 3. what something does
- 4. A part of a plant that is usually under the ground.
- 5. The specific form and shape of something.
- 7. A group of things that affect each other and function as a whole.
- 8. A part of a tree that grows out from the trunk and usually has leaves.
- 9. Information that can be used to support or reject an idea.
- 10. The outside of something, including the outside of living things.