use this site for your rocks and minerals foldable
Moh's Hardness scale
Play the castle game. You need to break down the walls in the castle using the different level drills. Once you use it, it is gone. You will need to test the unknown wall hardnesses with the common items to see which drill level you will need.
Eye Witness: Rocks and minerals
Read carefully through the text to learn about different kinds of rocks and minerals.
Rockin' Research
Use this site to look at different rocks and minerals.
Who am i?
Based on the characteristics, see if you can guess which rock or mineral it is!