Introducing… Geology!

New Mexico (in general) is a pretty dry place. It seems like most people don’t own rain gear. We seldom have to adjust class for weather. This week was a rare exception- with all of the rain/snow, we had to move our outdoor River Classrooms for our Española 4th-6th graders, our Tierra Amarilla 5th-6th graders, and our Chama 4th-5th graders in to the classroom! Obviously being outside is much more fun than being inside, but we worked hard to come up with a fun activity to make up for it.

We decided to start one of our very favorite topics…. GEOLOGY!

To gauge how much our students understand about geology, we began by talking about the three primary types of rocks- igneous, sedimentary, and metamorphic. As we discussed the different types of rocks, our students created a cool foldable to stick in their science notebooks.

After cutting, gluing, and drawing, our students had a neat way to remember the three types of rocks and the rock cycle.

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Next, in order to make this concept stick, we used crayons to model the rock cycle! Students began with crayons with no wrappers. These represented igneous rocks. Students used plastic knives to carefully weather the rocks into sediment.

This sediment was converted into a sedimentary rock by lightly pressing on the sediment to replicate the weight of water on it. Students used even more pressure, as well as body heat to transform their sedimentary rock into a metamorphic rock.

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Students working on transforming their rock

Finally, the most exciting step: melting our “rocks” into “magma” and letting them cool to form “igneous rocks”!

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This student “carved” his “igneous rock” into an arrowhead as if it were obsidian!

While I’m sure our students would have preferred to be outside, we made lemonade out of lemons and had a lot of fun learning about the rock cycle in all three classes! The best part: now our students have the background knowledge for our next outdoor trip to be a geology hike!

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