Students examine axles and wheels using LEGO materials. They investigate the uses of axles, gears, and wheels.

Students design and build a tractor using LEGO materials. They write and draw their designs.

First graders study, observe, and use a simple machine. They study necessary safety and review posted safety rules related to using a machine and identify strategies for reporting any accidents or injuries.

Students explore the theories of the creation of the universe and examine the properties of celestial bodies. They analyze the relationship between the sun, Earth and other planets. They discover the infinite potential of the science of...

Students explore the theories of the creation of the universe and examine the properties of celestial bodies. They analyze the relationship between the sun, Earth and the other planets.

Learners demonstrate that material strength varies with shape and arrangement.

Students analyze the decision to smoke and how it is influenced by peer pressure. The discuss ways to say no to tobacco use.

Students investigate and experiement with a 9-volt motor. They will use the connecting wire and battery pack to discover fans.

Students collect and analyze data about wind speed. They build a Lego wind sail and measure the wind speed with a rotation sensor. They use software to analyze the data.

Students examine different types of landscapes through a geographer's eye. Using a city block or a suburb, they organize their thoughts and take notes to survey a site. They discuss what they have seen and write about how looking at...

In this science activity, students select twenty-five scientists from the list to fill in their bingo card. Then they match each of the scientists listed to their correct description strip.

Students explore the concept of geometric symmetry. In this geometric symmetry lesson, students walk around their school and take pictures of objects that demonstrate symmetry. Students use Microsoft Paint to draw the lines of symmetry...

Students explore online tutorial on polymers. In this chemistry activity, they create two polymers in the lab and compare their properties. They write a sales letter about their new and improved polymer product.

In this online quiz worksheet, middle schoolers read the sentences containing the English sayings and select the correct answer to complete the 10 exercises.

Students are given a word bank relating to theater. In this word bank lesson, students are introduced to a list of words and their definitions. Students then build their vocabulary regarding theatrical concepts.

By the end of this section, you will be able to define conservative force, potential energy, and mechanical energy; explain the potential energy of a spring in terms of its compression when Hooke's law applies; and use the work-energy...

[Free Registration/Login Required] This module has students using a simple machine to learn about the relationship between work, force, and energy.

What keeps you in your seat of a giant loop-de-loop roller coaster? Surprisingly, it is not the seatbelt but the seat. It works because of something called centripetal force and it does much more than make a great roller coaster. In this...

By the end of this section, you will be able to define nonconservative forces and explain how they affect mechanical energy, and to show how the principle of conservation of energy can be applied by treating the conservative forces in...

[Free Registration/Login Required] A video module where students learn about the relationship between force, work, energy, and mechanical advantage using a simple machine.

In the following interactive students will begin to explain how an object must be displaced for a force on it to do work. They will also explain how relative directions of force and displacement determine whether the work done is...

In the following interactive students will begin to explain work as a transfer of energy and net work as the work done by the net force. They will also explain and apply the work-energy theorem.

This guide focuses on four physical science topics that fascinate children and scientists alike. They are motion, magnets, sound, and light. With your guidance and support, these topics provide children with many opportunities to explore...