- Complete your analysis.
Today we conducted the first investigation of lesson 11. We wanted to see how magma moving beneath the ground affects the ground above it. We wanted to see if any landforms are created as a result. We did this using "cold" magma and "hot" magma. Here's what you need to do:
- View the cold model magma video below. This models what happens when relatively cool magma reaches the surface of the earth. Record what you see on the XPT Handout 26 (page 2).
- Now view the warm model magma video below. This models what happens when relatively warmer magma reaches the surface of the earth. Record what you see on XPT Handout 26 (page 2).
- Finally, look at the image. This shows what happens when the warm magma drains from the surface. Record what you observe on XPT Handout 26 (page 2).
- Answer the analysis questions.
You received one handout today:
- XPT Handout 26: Investigating Magma and New Landforms
Notice how hard it is for the "cold" model magma to break through the surface. More important, notice what happens to the surface as the model magma rises up.
Compared to the "cold" model magma, notice how much more easily the "hot" model magma breaks through the surface. Also notice how it spreads outward.