1. 2. convection in the liquid mantle,
heat/expand/rise
1. solid core is hot!
5,000°C (~9,000 F)
which causes…
2. convection in the liquid mantle,
which causes…
cool/contract/sink
Materials per student- sheet of blank copy paper, yellow, orange, and brown butcher block paper, scissors, *glue, *2 circular objects to trace (1 larger than the other; I used a cup and a plastic bowl)
*these are objects students can share, so you won’t need as many
Procedure-
Have each student trace and cut a small yellow and a larger orange circle, and several small brown pieces (of different sizes and thicknesses). Show them yours, and demonstrate exactly what they are to do.
Have them write the notes on the yellow and orange as shown on the ppt. (Don’t glue yet! It’ll be too wet to write. By the way, change/add the text on the ppt as much as you like to fit your needs.)
Lay the yellow and orange circles on the left side of the paper as shown (longways), lay some brown pieces (dry) for now, and add point 3. notes to the right about the effects.
Cut little pieces of brown, and NOW glue everything down. You’ll probably need to demonstrate this and make a big deal out of how little glue you need to use (I did).
Really cool demo your students, or at least you, can do that shows convection-

2. …these effects on tectonic plates: movement (earthquakes)
magma reaching surface (volcanoes)
folding of rock (mountains)
faulting, in which:
new crust forms at ocean floor, while
old crust subducts
1. solid core is hot!
5,000°C (~9,000 F)
which causes…
2. convection in
the liquid mantle,
heat/expand/rise
cool/contract/sink
fast
slow