Across
- 2. It shows how many atoms of each element are in a substance.
- 4. Elements are made up of the same atoms and can’t be broken down into a simpler substance.
- 6. The point when a liquid turns to a gas.
- 7. Has definite shape and volume.
- 9. A mixture that is the same throughout (no layers).
- 10. Molecules of two or more different elements that are chemically bonded together.
- 13. A mixture that is not the same throughout (will see layers).
- 14. It's how compact the atoms are held together, and its calculated using mass divided by volume.
- 16. Air is colorless (they are often easy to observe.)
- 18. The study of the composition, structure, and properties of matter and the changes that matter undergoes.
- 19. Magnesium is so reactive that its used to make emergency flares, light bulbs are filled with argon gas it’s not reactive.
- 20. Has no definite shape or volume.
- 21. Two or more atoms that are connected by chemical bonds.
- 22. The point when a liquid turns to a solid.
Down
- 1. Anything that has mass and occupies space.
- 3. Iron rusting.
- 5. Two or more substances that are mixed together but not chemically bound together.
- 8. The basic unit of matter and define the structure of elements.
- 11. The point when a solid turns to a liquid.
- 12. Matter that has a fixed composition and definite properties.
- 15. Water evaporates.
- 17. Has definite volume but not definite shape.