Across
- 3. Two or more atoms stuck together.
- 10. Something you can observe or measure without changing it.
- 13. Matter made of only one kind of particle.
- 14. A system where matter cannot get in or out.
- 15. Atoms moving around to make new molecules.
- 19. A homogeneous mixture where one thing is dissolved in another.
- 20. When a substance mixes evenly into a liquid.
- 21. In a closed system the total mass stays the same.
- 22. A reaction written so each type of atom matches on both sides.
- 23. A mixture with tiny particles mixed in that don’t quickly settle.
Down
- 1. A tiny piece of matter, like an atom or molecule.
- 2. How much space something takes up.
- 3. Two or more substances mixed together but not bonded.
- 4. What you start with in a reaction.
- 5. A “code” that shows what atoms are in something and how many.
- 6. What you get at the end of a reaction.
- 7. A system where matter can get in or out.
- 8. A pure substance made from two or more elements joined together.
- 9. A mixture that is not the same everywhere; you can see different parts.
- 11. A mixture where bigger particles can settle to the bottom.
- 12. How much matter something has.
- 16. A mixture that is the same everywhere; it looks uniform.
- 17. When substances change into new substances.
- 18. A way to separate a mixture without making new substances.