Across
- 1. The amount of matter in an object
- 3. Household Products Symbols
- 5. Types of River Ecosystems
- 6. Circuit where electrons flow through more than one path way
- 8. variety and variability of life on Earth
- 11. A living organism in the ecosystem
- 14. Object that allows flow of charge in more than one direction
- 20. Lake ecosystems that contains biotic factors
- 21. Atom that is negatively Charged
- 22. Atom that is Positively Charged
- 23. Workplace Hazardous Materials Information system
- 25. Device that opens and closes pathways in electrical circuits
- 26. Amount of light given out by a star
- 27. material that keeps current at a safe number
- 28. total amount of water is on a planet
- 30. Circuit where electron only have one path to go through
Down
- 2. Device used to measure current in a circuit
- 4. Theory where sun might be near the center
- 7. A non living organism in the ecosystem
- 9. When an atom has less or more of electrons
- 10. Atom that is neutrally charged
- 12. small pattern seen between the constellations
- 13. Device used to measure electrical potential difference
- 15. basic unit of a chemical element
- 16. animals that are on the highest trophic level
- 17. home to living an non living organisms
- 18. Solid, Liquid or Gas
- 19. Object that doesn't allow electrons to move freely
- 22. Substance Substance with one kind of particle
- 24. Theory about structure of solar system
- 29. Celestial Body that orbits around the sun