Full AspenCat Catalog

A special field trip on the magic school bus allows Ms. Frizzle's class to get a first-hand look at the major parts of the body and how they work.

In prehistoric days there were many different kinds of dinosaurs, big and small, those with spikes and those with long, sharp teeth.

Introduces spiders and their habits: where they live, what they eat, how they move and protect themselves, how they help and harm us, and why they are called engineers.

Introduces the parts of a tree and their functions, as well as the kinds of trees and their place in the environment.

Monster tries on girl, boy, cat, and dog masks at Halloween but since they are all too scary he decides to go as himself.

Even though Mount Everest measures 29,028 feet high, it may be growing about two inches a year. A mountain might be thousands of feet high, but it can still grow taller or shorter each year. Mountains are created when the huge plates that make up the earth's outer shell very slowly pull and push against one another. Read and find out about all the different kinds of mountains. The earth's continents rest on plates that move slowly across our planet's...

Capturing the courage of a little girl facing racism and hatred alone, the true story of Ruby Bridges reveals how she helped shape American history as the first African American child sent to first grade in a white school.