Across
- 4. The typical or usual amount or level
- 5. A scientist who studies forces, energy, and motion
- 8. Energy released in waves or particles
- 10. To find something previously unknown
- 11. A person trained to design and build machines or structures
- 12. A study involving asking questions to gather information
- 16. Organized collection of information stored electronically
- 18. Force pulling objects toward the center of the Earth
- 20. A fact or an event in nature or society, especially one that is not fully understood
- 22. Gas essential for human breathing
- 23. Information used to support the truth of a claim
- 24. Smallest structural unit of living organisms
Down
- 1. Amount of matter contained in an object
- 2. A type of solid, liquid or gas that has particular qualities
- 3. A new device or method created by someone
- 6. The final judgment or decision reached after consideration
- 7. A mathematical rule expressed in symbols
- 9. Involving science; connected with science
- 13. An educated guess or prediction made before testing
- 14. An abstract idea or general notion
- 15. Anything that occupies space and has weight
- 17. Smallest particle of a chemical substance
- 19. Detailed examination of something to understand it better
- 21. A test done to prove or investigate something
- 25. A pure chemical material made from one type of atom