Rock art is one of the oldest known forms of human expression. Before there was paper for drawing or canvas for painting, ancient artists carved into rock walls and painted on stone surfaces.

Explains how things are measured, with directions for making counting sticks, a growth chart, a sand-clock timer, water-glass chimes, and other projects.

Provides information about the physical characteristics and habits of African and Asian elephants in the wild and in captivity.

Follow a classroom of real kindergartners as they participate in a popular activity: raising butterflies. Astonishing photographs show the life cycle of the painted lady butterfly, from egg to caterpillar to chrysalis to adult. Engaging text captures the children's wonder and explains the science behind metamorphosis.

Explains how the different types of bones of the body work harmoniously together.

Describes how fireflies grow, why they light up, and how people in other parts of the world have special festivals for them.