This is a print and sort high impact activity. It is fantastic as review, but can also be used to asses prior knowledge. Perfect for a science center. I laminate mine and give the students 2 plastic baseball card sleeves taped together to sort the cards into (they are sized to fit).
Layers of the Earth (core, mantle crust)
States of matter in the layers
Transport of heat in the layers
One fact about each layer
Change in density among the layers
Change in heat among the layers