A true book. Experiments introduce and explain the concept of gravity.

Kids will learn how things they encounter every day operate by building their own models with this hands-on activity book. Projects include building a working model of the human hands muscles, bones, and tendons using drinking straws, tape, and string; using a pair of two-liter bottles and a length of rubber tubing to learn how a toilet flushes; and discovering how musical instruments make sounds by fashioning a harmonica, saxophone, drum, flute,...

Introduces the characteristics and actions of the wind through simple hands-on activities.

A remote military research station in Utah sends out a frantic distress call, ending with a chilling final command: Kill us all! Personnel from the neighbouring base rush in to discover everyone already dead - and not just the scientists, but every living thing for fifty square miles has been annihilated. The land is entirely sterile-and the blight is spreading. To halt the inevitable, Commander Gray Pierce and Sigma must unravel a threat that rises...

Explores properties of simple machines through experiments, using material that is readily available both in homes and schools.

Presents several fun science experiments to do with temperature.

Provides simple step-by-step text and photographs for six bubble experiments to explore the properties of gases.

Outlines forty-two science experiments, with illustrations of the equipment needed, step-by-step instructions, and an explanation of the results, including such projects as a vinegar volcano, vanishing rainbow, wingless plane, and CD hovercraft.

Takes a look at how to transform the energy and control from a person's muscles into higher speeds needed for throwing and then looks at machines that store energy and release it in a controlled way to propel objects for long distances.