Presents a simple introduction to earthquakes and explores their causes and how they are measured. Discusses major earthquakes from throughout history and describes what to do if caught in an earthquake.
A visit to a museum of natural history provides a little boy with an introduction to the habits, characteristics, and habitats of fourteen kinds of dinosaurs.
LET'S-READ-AND-FIND-OUT ABOUTFrogsFrogs can jump thirty times their own body length, catch insects on the wing, and breathe underwater or on land. But they must always keep their skins wet. Read and find out why!.
Looks at the many machines that use oil, discusses the danger of dwindling supplies and the environmental hazards of burning oil, and considers alternatives to fossil fuels.