Across
- 1. Made by people; not found in nature.
- 4. To make something work as well as possible.
- 7. A way to grow plants using only water, not soil.
- 9. To change something slightly to make it better.
- 10. Connected to the parts of a cell (DNA) that control how living things grow and look.
- 11. Something that causes a lot of argument or disagreement.
- 13. Able to continue for a long time without hurting the environment.
- 14. To design and build something using scientific principles.
Down
- 2. A special room where scientists do tests and research.
- 3. An exact copy of a plant or animal created by scientists.
- 5. Using new, smart, and creative ideas.
- 6. The amount of crops or food that a farm produces.
- 8. Working well without wasting time, money, or energy.
- 12. A plant or animal made by mixing two different kinds together.