This week in science we each had to bring in a rock and classify it. The rock I had to classify was white and shiny. It looked like the shiny part was small crystals. The rock was heavy as it was once bigger and something compacted it and it got really small. I think the rock I had was a metamorphic rock. I think heat and pressure transformed an igneous rock into a metamorphic rock and thats the rock i had to classify.

I think this rock is metamorphic because it had a shiny coating. When I looked at it under the stereoscope the shiny coating looked like small crystals. Igneous rocks have crystals in them sometimes. When the heat and prssure started changing the igneous rock the crystals were crushed and formed a coating over the new rock. I think that the rock i was supposed to classify is a metamorphic rock but was once an igneous rock.


This week in science we also lesrned about heating. We learned that heat is not an actual physical thing. We also learned how a thermometer works. The particles in the thermometer start moving very fast when the air particles around the thermometer start colliding against them. When the particles in the thermometer move faster they need more room to move around so they start moving up.