Across
- 3. an optical instrument that makes distant objects appear closer, larger, and brighter by gathering and focusing light
- 6. step by step way of solving problems and answering questions about how the world works
- 8. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
- 10. the action or process of watching someone or something to gain information
Down
- 1. a tentative, testable, and falsifiable explanation for a specific phenomenon or research question
- 2. a structured procedure carried out under controlled conditions to test a hypothesis, discover unknown effects, or illustrate scientific laws
- 4. the natural tendency of an object to resist changes in its state of motion
- 5. a model of the universe or solar system with Earth at the center
- 7. having or representing the sun as the center, as in the accepted astronomical model of the solar system
- 9. is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.