"Math and Science": HTML5 Crossword

Across

2. What is the missing number in 10 - ? = 6? (4)
5. This coin is made of copper. (5)
7. Which 3D shape looks like a square? (4)
9. When you collect data (information), what tool can you use? (5)
11. What is the answer called when you subtract? (10)
12. How many coins are made of silver? (5)
13. What does a scientist use to protect their hands? (6)
15. A Scientist uses this to protect their clothes? (3,4)
17. Which coin is the smallest? (4)
18. This form of energy helps the plants grow and allows us to see in the dark. (5)
19. Which 3D shape is round and looks like a ball? (6)

Down

1. What is another word for coins? (5)
3. What is the name of the 3D shape that looks like a party hat? (4)
4. What is the name of the 3D shape that looks like a soda can? (8)
6. This coin is worth $0.25 cents. (7)
8. What does a scientist use to protect their eyes? (6,7)
10. Which coin is worth $0.05 cents? (6)
14. What is the answer called when you add? (5,0)
16. When you subtract, the (blank) number comes first? (6)