force and energy

Explores the principles of force and motion, describing how they have been applied from ancient to modern times.

"Presents information on simple machines with a focus on wheels and axles. Explains what wheels and axles are, how wheels and axles work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Presents information on simple machines with a focus on wedges. Explains what a wedge is, how wedges work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Presents information on simple machines with a focus on screws. Explains what a screw is, how screws work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Presents information on simple machines with a focus on pulleys. Explains what a pulley is, how pulleys work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Presents information on simple machines with a focus on levers. Explains what a lever is, how levers work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Presents information on simple machines with a focus on inclined planes. Explains what an inclined plane is, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

There are different forces working on your body and environment every day, including gravity, friction, magnetism, and buoyancy.

Simple text and photographs introduce the concepts of force and energy by showing objects being moved in different ways.

An introduction to forces and magnets, covering gravity, friction, poles, and more.