Across
- 4. This is a community of organisms and the nonliving components in their environment
- 7. This refers to the number and variety of organisms in an ecosystem
- 8. This natural resource takes millions of years to form
- 12. These people conduct investigations by using the scientific method
- 13. Everything has a life _______ from the moment is it made to when it is disposed
- 16. This is a resource that is found in nature
Down
- 1. This method is used by scientists to test theories
- 2. This natural resource could be replaced in a short period of time
- 3. This is an educated guess
- 5. If you get chemicals in your eye, you should wash them for 15 _____
- 6. Sand ________ is done to collect Earth's natural resources to be used by humans
- 9. We can reuse items instead of disposing them this way
- 10. This ingredient is found in sand and used to make glass
- 11. This is a nonrenewable resource used to make gas
- 14. Another word for wood
- 15. These people develop solutions to help solve a problem