Answer:
The Earth’s crust is not a solid shell. It is made up of thick, interconnecting pieces
called tectonic plates that fit together like a puzzle. They move atop the underlying mantle, a really thick layer of hot flowing rock.
By examining evidence such as similar rock layers in various places, fossilized desert
belts, the distribution of fossils, and the physical shapes of continents, scientists
have concluded that the Earth’s continents were once all connected to form a
“supercontinent” called Pangaea that was surrounded by an enormous ocean. In
this activity, students will use the different kinds of evidence to reconstruct how
the Earth may have looked approximately 220 million years ago.
Explanation:
