Students discuss micro-organisms. In this micro-organisms lesson, students identify which micro-organisms are harmful and which ones are beneficial. Students complete a worksheet which is included in the lesson.

For this physics worksheet, students complete short answer questions about physics concepts such as electricity, space, light, and more. Students complete 20 short answer questions.

Students participate in an online lesson to reinforce the similarities and differences in plants and animals. They classify living things according to observable characteristics.

Students participate in an online lesson showing that gases are formed when liquids evaporate and that when a gas is cooled, it condenses to form a liquid, and gases move and flow more easily than liquids, and how gases differ from solids.

Students examine how micro-organisms are living organisms that are often too small to be seen. They explain that micro-organisms may be beneficial or harmful.

Young scholars review what the heart does and why the muscles in the body need oxygen. As a class, they measure their pulse rate while they are resting and after they have jogged for three minutes. They are helped by their teacher to...

Students complete several worksheets about machines.  In this machine lesson students complete several handouts that describe the different machines  and how pulleys work. 

Fifth graders work cooperatively in groups to assemble and launch a rocket.

Students simulate block and tackles to lift heavy objects. They lift cargo by hand with the whip and the two-fold purchase to simujlate what crew members do aboard ships. They measure the effort and distance pulled for a gun tackle, luff...

In this investigation, students will learn that speed, velocity, and changes in velocity are the result of the action of forces on objects such as friction. They will be able to explain how the force of friction opposes motion by...

In the first of two lessons of this curricular unit, students are introduced to the concept of friction as a force that impedes motion when two surfaces are in contact. Student teams use spring scales to drag objects, such as a ceramic...

Young scholars are introduced to the concept of inertia and its application to a world without the force of friction acting on moving objects. When an object is in motion, friction tends to be the force that acts on this object to slow...

We all recognize what friction is, but do you really understand what causes it? This project focuses on friction, its causes and forces and specifically how it affects how fast you can slip down slides.

The funny thing about friction is that you couldn't get anywhere without it, yet it still acts to slow you down as you're getting there. Here is an easy project to measure the effects of friction.

Students study how the nature of two materials in contact, and the smoothness of their surfaces affect the magnitude of the sliding force of friction. They use a force sensor to measure frictional force for different surfaces.

By the end of this section, you will be able to discuss the general characteristics of friction, describe the various types of friction, and calculate the magnitudes of static and kinetic frictional forces.

By the end of this section, you will be able to calculate coefficient of friction on a car tire and to calculate ideal speed and angle of a car on a turn.

In the following interactive students will begin to calculate coefficient of friction on a car tire. They will also calculate ideal speed and angle of a car on a turn.

Explains what static and kinetic friction are, what their coefficients of friction are in different scenarios, and how these concepts are applied when looking at automobile braking distances and vehicle control when driving.

Use this simulation to see the results of applying a force to move an object. Analyze forces and friction using graphs.

A collection of experiments where students can learn about how friction works and affects the physical world. At the end, students design a tortoise to win by slowing it down using friction. Lesson includes explanation of the concept of...

With this hands-on lesson, help students understand force, gravity, friction, and speed. Students will also learn how each of these concepts affects the another.

Students must determine the work done by a horizontal force when there is a frictional force acting on the box. Students must then find the speed of the box.

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