Now our crystals are big. Rocks and Minerals Unit By Daniel M . We are studying about rocks and minerals. I learned that every rock has a mineral in it. Igneous is when hot magma cools down.
Sedimentary rock is layered rocks that are formed by pressure.
Metamorphic rocks are formed when igneous and sedimentary rock change because of pressure and heat deep within the earth. We collected rocks. One was our pet rock and the other one was a science rock. We kept the pet rock and cracked the science rock open. I'm just going to mention this, we are growing crystals.