This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 2 of 8 in the series titled "Diffusion."

This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 4 of 8 in the series titled "Diffusion."

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 3 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 4 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 5 of 9 in the series titled...

This lesson explains the process of facilitated diffusion, explaining that it is a passive form of transport which uses protein channels to move larger molecules down their concentration gradient. It is 1 of 9 in the series titled...

This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 2 of 8 in the series titled...

This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 4 of 8 in the series titled...

This lesson explains the process of osmosis. It explains how osmosis is a passive form of transport, used to move water molecules across a semi-permeable membrane, down their concentration gradient. It is 1 of 8 in the series titled...

This lesson explains the process of diffusion. It explains how diffusion is a passive form of transport, used to move molecules down their concentration gradient. It is 1 of 8 in the series titled "Diffusion."

This is a lesson from a unit on 20th Century and Modern Poetry focuses on Mohondas Gandhi and his nonviolent resistance against British rule of India. It features links to Gandhi's biography, his ejection from a train in...

Through 10 lessons and more than 20 hands-on activities, students are introduced to the concept of an environment and the many interactions within it. As they learn about natural and human-made environments, as well as renewable and...

We all know that it takes energy to provide us with the basics of shelter: heating, cooling, lighting, electricity, sanitation and cooking. To create energy-efficient housing that is practical for people to use every day requires...

Through two lessons and five activities, students explore the structure and function of cell membranes. Specific transport functions, including active and passive transport, are presented. In the legacy cycle tradition, students are...

This tutorial explains what subjects and objects are and how they are different. It offers 3 videos using the characters Nancy and Patrick: the first explains how to find subjects, direct objects, and indirect objects; the second is...

This Purdue University tutorial covers active and passive voices through simple examples.

Explains the types of solar water heaters a home can have. These include a passive system, an active system, and a solar collector, as well as the need for a storage tank. It also gives tips on how to get the best use from a solar water...

The differences between active and passive spore release in fungi are explained in this thorough site.

The differences between active and passive spore release in fungi are explained in this thorough site.

The differences between active and passive spore release in fungi are explained in this thorough site.

The differences between active and passive spore release in fungi are explained in this thorough site.

This site has an overview of PV technology, impact, system application and design. Information is provided on how to select the best solar system for various needs.

Why write five paragraphs when you can say what you want to say in two? Learn how to make the most of your words and sentences to get your point across without being too wordy.

Phi Delta Kappa shares Alfie Kohn's research-based information about how to increase student engagement. Ideas are provided for increasing student engagement during all subject areas.