Explains the difference between good fire, which can be used safely for cooking and providing warmth, and bad fire, which can cause burns or destroy property.

Describes what the world was like when dinosaurs roamed the earth, and introduces many of the animals and plants in nature today that were also seen by the dinosaurs.

A simple explanation of what sharks look like, how they hunt, what they eat, and how they are born.

First-person riddles present information about various rocks and minerals, including sandstone, chalk, slate, and petrified wood.

Explains what snow is and what can be done with it. Includes instructions for making a snowflake from paper.