The greater the force applied to an object, the greater the change in speed or direction of the object.

Build a multistage rocket from two balloons.

Extensive site for teachers provides some helpful resources that pertain to plant and animal cells. Includes a microscope diagram as well as plant, animal and pond labs. Also contains links to structures and mechanisms, matter and...

Learn more about finding acceleration through the practices found in this lesson. "The process of determining the acceleration of an object demands that the mass and the net force are known." Check out this comprehensive site.

Introduce students to the ideas of motion and force in this hands-on lesson plan.

This site from PBS Kids "Zoom" provides great ideas for building a Rube Goldberg machine around the house from common items. The information is complete with materials needed, instructions, and results on a level for elementary kids.

This is an online story for early readers about things that can go into motion, and things that can't. It offers help for readers as they can click on a words and it will say the word aloud. It also provides a list of words used in the...

A color photograph by Tony Newlin of a ride called The Waltzer at an amusement park, carnival, or fair.