Across
- 3. two or more substances that are together, but not chemically combined
- 5. elements located to the right of the stair-step (zig zag) line on the periodic table
- 9. two or more atoms joined (bonded) together chemically
- 14. elements located to the left of the stair-step (zig zag) line of the periodic table
- 16. the law that states matter cannot be created or destroyed
- 17. the number of protons or electrons contained in an element
- 22. the number of protons plus the number of neutrons contained in an atom's nucleus
- 23. elements or compounds on the right side of a chemical equation
- 26. the type of change that results in the formation off new chemical substances
Down
- 1. the amount of space an object occupies
- 2. a substance that consists of 2 or more elements combined in a set ratio
- 4. positively-charged subatomic particles found in the nucleus
- 6. a diagram showing the amount of available energy, moving from one feeding (trophic) level to the next
- 7. elements or compounds on the left side of a chemical equation
- 8. the center of an atom that contains the protons and neutrons
- 10. the basic building block of matter that make up everyday objects
- 11. neutrally-charged subatomic particles found in the nucleus
- 12. the ability to move heat or electricity from one place to another
- 13. a table of the chemical elements arranged in order of atomic number
- 15. the type of change in which the form/appearance of matter is altered, but one substance is not transformed into another
- 18. negatively-charged subatomic particles found in a cloud surrounding the nucleus
- 19. a series of interactions in which one organism eats another in order to gain energy
- 20. a diagram showing many overlapping food chains
- 21. the ratio of an object's mass to its volume (M/V)
- 24. a pure substance that cannot be broken down chemically
- 25. the amount of matter in an object