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Modeling tectonic plate boundaries with crackers and jam (hands-on geology lessons for kids)

Leave a Comment Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade

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As part of our volcano unit study, we learned a bit about plate tectonics.

As you may be aware, the top layer of the earth, called the crust, is covered in plates, called tectonic plates, that fit together like a jigsaw puzzle. However, unlike a jigsaw puzzle, the tectonic plates on the earth’s surface are in constant motion.

The place where two plates meet is called a boundary, and geologists classify plate boundaries into one of three kinds: convergent, divergent, and transform.

We did a hands-on geology lesson to learn about the three different plate boundaries and how they relate to volcanoes and earthquakes.

Modeling convergent, divergent, and transform plate boundaries with crackers and jam: a hands-on geology lesson for kids #geology #platetectonics #handsonlearning #giftofcuriosity || Gift of Curiosity

Three types of plate boundaries

Plate boundaries occur where two (or more) tectonic plates meet.

Geologists classify plate boundaries into one of three categories: convergent, divergent, and transform.

Convergent boundaries occur where two plates move toward each other and collide. Typically, when two plates converge, the thinner plate will sink under the thicker plate in a process called subduction. Convergent boundaries are also responsible for creating some of the tallest mountains on earth, such as K2 and Mount Everest.

Divergent boundaries occur where two plates move away from each other. This creates an opening where molten rock can erupt, forming new crust. The Mid-Atlantic Ridge, a mostly underwater mountain range in the Atlantic Ocean, was created due to a divergent plate boundary.

Transform boundaries occur where two plates slide past each other. A well-known transform plate boundary is the San Andreas Fault in California, which is responsible for many of the state’s earthquakes.

 

Hands-On Activity to Model Plate Boundaries

For this activity, we used graham crackers to model the tectonic plates and strawberry jam to model the earth’s mantle (the layer right beneath the earth’s crust), which is largely made up of magma (hot, liquid and semi-liquid rocks). We also used three small plates.

Materials needed: crackers, jam, and small plates

My daughter started by scooping some jam onto the plates.

Scooping jam onto a plate

Then I had her grab two graham crackers tectonic plates. I named one of the boundary types and asked her to show me how the plates move at that boundary.

In the image below, she was sliding the graham crackers by each other to show a transform boundary.

Transform boundary

And in the next image, she pulled the two tectonic plates apart from each other to show a divergent boundary.

Divergent boundary

At the end, we labeled the three types of plate boundaries.

Modeling convergent, divergent, and transform plate boundaries with crackers and jam

And that was a simple, yet effective, hands-on way to teach about plate boundaries.

Filed Under: Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, Geology, 4th Grade, 5th Grade, Science, STEAM Tagged With: volcanoes, earthquakes

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