6. pure gold is...?
- soft and easily bent
- like rubber
- worth a lot of money
- hard, it's a metal isn't it?
7. phytomining is...?
- extracting copper from plant roots
- extracting copper compounds from bacteria
- taking photos of mines
- extracting zinc from plants
8. what is the chemical symbol for Tin?
- TIs
- Sn
- TN
- Ti
9. what is more reacitve? Lead, Magnesium, Gold, Iron or Sodium?
- sodium
- magnesium
- iron
- gold
- lead
10. titanium has a ....?
- brother
- large mass
- low density
- high density
