Across
- 2. What are the two poles called on a magnet? North and_____
- 8. what side of the periodic table are metals?
- 11. how many groups of vertebrates are there?
- 12. what is that animal with no backbone called?
- 13. what do you call a group of organs?
- 14. What is sound measured in?
- 15. what is the jelly like substance called inside a cell?
Down
- 1. what controls a cell?
- 3. what do you call a group of cells?
- 4. What state of matter does sound travel quickest through?
- 5. what is the only element of the periodic table that is separate from all the other elements?
- 6. What happens if you put two alike poles next to each other?they_____
- 7. What happens when you put two unalike poles next to each other? they____
- 9. What does an object do to produce sound?
- 10. do vertebrates have a backbone