This Science Buddies project explains how to build a mechanism that will reproducibly swing a hammer so you can determine the amount of force needed to hammer a nail through various densities of wood. The Science Buddies project ideas...

By comparing the feet of different water birds you can discover how they propel the birds through the water. This Science Buddies project show you how to modify swim fins to simulate ducks' feet, greebes' feet, and the feet of...

Improve the design of a very simple aircraft, the whirlybird, and learn about hydrodynamics and biomimicry in this science experiment. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and...

[Free Registration/Login may be required to access all resource tools.] Machines and friction, the efficiency of a machine and how to calculate it.

Use your knowledge about friction to help Carrie get to the Invigatron before someone steals it. Following the activity, read more about friction and resistance, and then take a quick quiz to check for understanding.

In this document, we will try to answer a fundamental question of physical science, "Why do things start to move, slow down, speed up, stop moving or change direction?" In answering these core questions we can develop concepts that can...

In this lesson, your middle schoolers will learn about kinetic and potential energy as they build their own roller coasters from simple classroom materials.

Students learn about static electricity using terms such as friction, induction, and conduction. They also explain and illustrate the difference between alternating and direct current, and understand the relationship among voltage,...

[Free Registration/Login may be required to access all resource tools.] Describes friction and how it opposes motion, and identifies types of friction.

This science experiment provides a nice introduction to friction and bearings.

[Free Registration/Login may be required to access all resource tools.] The four types of friction and how they act on objects.

Learn about the force of friction on this reference page which defines why friction is important and how it can change physic problems.

Review the key concepts, equations, and skills for friction, including how to find the direction and magnitude of the friction force.

Covers the meanings of force, friction, and gravity, and the differences between magnetic and elastic spring force, and between weight and mass. The effect of air resistance on an object's motion is also touched upon.

A video and a short quiz on acceleration.

[Free Registration/Login may be required to access all resource tools.] What static electricity and static discharge are, and how lightning occurs.

Kids learn about the science behind friction including how it works as a force to slow things down, how it helps us stand, preventing friction, types, and fun facts.

Young scholars observe objects in motion down a ramp to discover how the force of friction affects an object's motion. Includes the lesson plan, vocabulary list, and extensions for students.

A series of activities focusing on charge interactions, charging methods, and the conservation of charge. Activities utilize scotch tape and other readily available items. Includes explanations of what is happening.

This is part of a lesson on Newton's Laws of Motion that focuses on inertia and mass. It restates Newton's first law of motion. The lesson also gives a helpful visual description concerning friction.

An in-depth explanation of the wheel and axle from Scholastic. Also provides several examples and a picture for understanding.

In this lesson, young scholars make predictions about falling objects of different sizes and masses to learn about gravity and air resistance. Includes audio vocabulary list and extension activities.

Brief explanation of friction, with learning reinforcement, such as a quiz, a glossary, an image bank, and frequently asked questions about friction.

A detailed explanation of the different types of forces that can be applied to an object and how to represent them in a free body diagram. Includes examples and some practice problems to try, with solutions provided.