Through an animated illustration of a dot diagram and time graphs, students learn about constant negative velocity.

This animation depicts two cars, one passing the other, and the animated position-time graph that represents them is shown.

Through a short informational reading piece and an animated visual, students learn that vectors represent both magnitude and direction.

Explore sports science and build a ramp that will roll a ball right to the target.

Explore sports science and see how many points can you score with your bottle caps in Ruff's take on table hockey.

Select an oil or water environment for molecules and observe how they are affected by interactions with their environment and each other.

Observe how molecules with hydrophilic and hydrophobic regions move in a mixture of oil and water, and pay attention to changes in potential energy over time. Move and rotate the molecules to see how they interact with their surrounding...

A comprehensive overview with many interesting facts and information about the first talking motion picture, the movie studios, and movie stars.

Suspension systems on a vehicle absorb the shocks from contact with a road while it is in motion. This article explains related terminology, how suspension systems work, the components, and the different types of suspension springs.

This activity provides students an opportunity to investigate Newton's first law by observing inertia in a variety of experiments. Students will hypothesize on possible outcomes, write observations of what has happened, and apply...

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...

[Free Registration/Login may be required to access all resource tools.] In this lesson students use radical equations to solve area and volume problems.

Great animations showing how sound is produced.

An exhaustive (very exhaustive) biographical account of Johannes Kepler. Describes at length his upbringing, childhood, education, personality and scientific endeavors. Focus is on his development of a cosmological model and the laws of...

This lesson demonstrates how to find the net force acting on objects, at rest or, sliding across inclined planes. It is 1 of 2 in the series titled "Inclined Planes & Net Force."

This lesson introduces the concept of inelastic collisions.

This lesson introduces the concept of tension. It is 1 of 2 in the series titled "Introduction to Tension."

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.

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

Velocity or speed? Instantaneous or average? Keep building your physics vocabulary.

How to analyze graphs that relate velocity and time to acceleration and displacement.