I can see! I can hear! I can smell! I can touch! Children love to explore. Each day brings new sights and sounds, new things to smell and taste and touch. Aliki's simple text and colorful art introduce young children to the wonder of the five senses and what they reveal about the world around us.

Explains in simple text and illustrations what is known about the force of gravity.

Briefly introduces various types of dinosaurs whose skeletons and reconstructions are seen in museums and explains how scientists uncover, preserve, and study fossilized dinosaur bones.

Explains what comets are, how they are formed, and how their unusual orbits bring them into earth's view at predictable intervals, with a special focus on Halley's comet.

Explains how the various orders and suborders of dinosaurs were similar and different in structure and appearance.

Explains how bacteria and viruses affect the human body and how the body fights them.

A study of the air and atmosphere features a range of simple experiments designed to introduce young readers to the principles, characteristics, and behavior of the air around them.

Imagines sights and experiences on moon visit.

Describes how sunshine and the tilt of the earth's axis are responsible for the changing seasons.

Explains what shooting stars are, what they are made of, and what happens to them when they land on Earth.