The magic school bus : inside the Earth /
by Joanna Cole ; illustrated by Bruce Degen.
- New York : Scholastic, c1987.
- 40 p. : col. ill. ; 20 x 24 cm.
Children's Catalog (Wilson) *SLJ* Kirkus Reviews
On a special field trip in the magic school bus, Ms. Frizzle's class learns at first hand about different kinds of rocks and the formation of the earth.