Across
- 5. the relative size of things
- 6. a proposed answer to a question about the natural world
- 8. the process of making clear how your evidence supports your claim
- 10. medicines that kill microorganisms, especially bacteria
- 11. an organism that is too small to be seen with the naked eye
- 12. the tiny structures that make up all living things and are the smallest unit able to perform life
- 13. sickness cause by harmful microorganisms
Down
- 1. a group of the same type of organism living in the same area
- 2. all the microorganisms that live in a particular environment, such as the human body
- 3. too small to be seen with the naked eye
- 4. tiny organisms that are made of a single cell
- 7. living things, such as plants, animals, and bacteria
- 9. information about the natural world that is used to support or go against (refute) a claim