Across
- 3. A community of interacting organisms and their environment
- 4. A person who studies the natural world
- 7. A tool used to observe distant stars and planets
- 9. A test conducted to prove or disprove a hypothesis
- 10. An educated guess based on evidence
Down
- 1. A tool used to magnify tiny objects
- 2. Energy caused by the movement of electrons
- 5. A new creation designed to solve a problem
- 6. The smallest unit of matter
- 8. The force that pulls objects toward Earth