What kinds of rocks are in Minnesota? Where did they come from?
The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope. BARACK OBAMA
What kinds of rocks are in Minnesota? Where did they come from?
Why is it important to protect biodiversity?
What characteristics can we use to classify minerals?
What are rocks made of?