Rocks are magnificent. Some are very hard while others are relatively soft. Some were made from sediments that formed together, others from hardened lava and st

Rocks are magnificent. Some are very hard while others are relatively soft. Some were made from sediments that formed together, others from hardened lava and st

If you think all rocks are the same, then you are wrong. There are different types of rocks. They were formed in various ways so they have different composition

In this revised edition of a Baby Professor classic, we’ll take a second look at rocks and what we know about them. Complete with age-appropriate texts and ap

You may thing that rocks remain the same regardless of time because they are non-living. You are wrong. Rocks also undergo a cycle which is influenced by the pr