Across
- 5. Which state of matter is wood?
- 8. which subatomic particle has a positive electrical charge?
- 9. which subatomic particle has no electrical charge?
Down
- 1. which state of matter is water?
- 2. which state of matter is helium?
- 3. what type of substance is water(H20)?
- 4. which subatomic particle has a negative electrical charge?
- 6. what is the periodic table full of?
- 7. what is the name of a building block of matter?