Lesson Plan : Metamorphic Rocks

Teacher Name:
 Miss Stankiewicz
 Grade 3

 Metamorphic Rocks
 Metamorphic Rocks, Igneous, and Sedimentary rocks
 - Describe how metamorphic rocks are formed. - Apply heat and pressure to create a metamorphic rock. - Use oral language to discuss how the variation of heat and pressure form various metamorphic rocks.
 Clay- three different colors- 28 individual bags, Dental floss or craft stick, Paper towels, Experience worksheet
 o “We have already talked about two of the three types of rocks: igneous and sedimentary rocks. Today we are going to learn about the third type of rock: metamorphic. Metamorphic rock, as its name suggests, is a rock that has changed form. Igneous and sedimentary rocks both have the potential to become a metamorphic rock. The two major factors that influence the development of metamorphic rocks are heat and pressure. We learned that sedimentary rocks are broken down and become buried under the surface of the Earth. The farther into the Earth they go the more pressure and heat the rocks are under which causes the original rock to change and produce metamorphic rock. Today we are going to make our own version of a metamorphic rock.
 In order to understand the role of heat and pressure, we are going to try something first. Rub the palms of your hands together really fast. Do you feel the heat? Now put your hands together and squeeze hard. Do you feel the pressure? Heat and pressure can change things and that’s what we are going to see today. 1. First, I will pass out the materials. Do not touch anything until you are told. 2. Why do you think I gave you three pieces of clay that are three different colors? (Orally answer) 3.Begin activity.
 Experience: -First, flatten three pieces of colored clay on your desk to about 1-cm thick. -Now, stack the layers on top of one another to form a single piece with three layers. -Now, in order to make our own metamorphic rock model we must make heat and apply pressure. Therefore, we must do what we tried earlier. Rub your hands together quickly. Count to 10 then pick your clay up and twist and squeeze your layers of clay together. Now roll the clay into a ball. -Once I make sure that you have a ball, take the craft stick and cut the ball in half. -Now look at the inside of the clay sample and describe what you see. Answer the questions based on the changes that you have noticed from the beginning of the experiment with three separate pieces of clay to what is now a rock cut in half.
Checking For Understanding:
 1. The students will be assessed by their ability to complete the worksheet and share their findings.
 1. Today we created our own metamorphic rocks. You realized that in order for metamorphic rocks to be formed, heat and pressure must be applied to the rocks. Let’s share what makes each of your “rocks” different from the person next to you.
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