An introduction to electricity for children, identifying various appliances that run on electricity and what they do, discussing the sources of electricity, and including activities.
Presents a children's book for early readers that describes how humans and animals grow and care for their young, and explains the importance of exercise and keeping healthy.
Introduces the concept of sound by answering questions the reader may have about loud and quiet things; provides activities which illustrate the concepts.
Simple activities introduce the qualities of things that float in water, the difference between floating and swimming, and how balloons and airships stay up in the air.
An introduction to the concept of size, describing how sizes are measured, comparing sizes of such things as plants, animals, and buildings, and providing related activities.