Learning module prepares students for the Ohio state Social Studies test on Human Geography. Through tutorial videos, interactive games for review and assessment, students learn about human interaction with their environment, migration,...

The force exerted by the wind on the ocean surface gives rise to a vertical velocity gradient in the upper boundary layer of the ocean. Essentially, the wind adds momentum to the ocean surface which is then transported downward through...

Students learn what happens when cultures collide from the perspective of the "other." They come to understand the effects of globalization, cultural diffusion, and the struggle between tradition and change. Students also learn to...

Practice for the MCAT by answering questions based on the given graph about biological adaptations in Atlantic Salmon.

[Free Registration/Login may be required to access all resource tools.] The cell membrane is semi-permeable. Sometimes molecules need the help of special transport proteins or an input of energy to help them move across it. When an input...

College-level electrical engineering and computer science textbook highlighting the applications of continuum electromechanics.

Understand the processes that allow substances to enter and exit a cell with this interactive online worksheet. Site discusses both diffusion and osmosis.

This technical site provides an in depth look at membrane transport by clearly explaining the processes of diffusion and osmosis. Links are provided to clarify terminology.

This lesson introduces the process of passive transport, explaining that it is a form of transport that does not require energy, and moves molecules down their concentration gradient. It is 1 of 4 in the series titled "Passive Transport."

When a balloon is filled to near bursting with SF6 is left in air, it will often burst after a period of time. This is because the smaller N2 molecules diffuses into the balloon while the larger SF6 molecules remains causing the balloon...

[Free Registration/Login may be required to access all resource tools.] The following online tutorial helps students use Dalton's Law and mole fraction to calculate the partial pressure of a gas in a mixture. They will learn to calculate...

Moving materials across the cell membrane sometimes requires energy, called active transport. This tutorial covers both primary and secondary active transport with good clear animations.

The Cosmic Background Explorer, or COBE, satellite began its space mission in November of 1989. Its task was to measure radiation levels from the early stages of the universe. This site explains the mission goals, COBE's specialized...

You've stealthily descended into the darkness of a vampire cave, setting a sequence of mirrors as you go. When the sun reaches the right angle in the sky, a beam of light will ricochet along the mirrors, strike a diffuser, and illuminate...

[Free Registration/Login Required] Explore how the mass of a molecule affects how quickly a smell will reach our noses.

This comprehensive study guide covers the main terms and concepts needed for a unit on cell transport and homeostasis.

This detailed site will help you learn about the history, origin, and diffusion of squash. Includes links to squash organizations.

This site gives readers classic strategies to diffuse tense situations. Ideas are practical and useful. A great starting place for learning about conflict resolution.

A 3-D view of sedimentary rocks. Samples include Arenaceous Shale, Arkose (gray), Banded Sandstone, Barite, Bituminous Coal, Caliche, Chalcedony, Conglomerate, Coquina, Diffusion Dolmite, Dolomite, Dolomitic Limestone, Ferruginous Shale,...

[Free Registration/Login may be required to access all resource tools.] During active transport, molecules move from an area of low concentration to an area of high concentration. This is the opposite of diffusion, and these molecules...

[Free Registration/Login may be required to access all resource tools.] Reflection and how it produces an image, regular and diffuse reflection and the law of reflection.

This instructional task asks students to explain the impact that religion had on cultural diffusion in the Eastern Hemisphere. It contains a set of authentic source documents. Students engage with the sources to build their understanding...

A lab demonstration for students to see that food coloring moves faster in hot water versus cold water. Lab activity includes student and teacher information.

Great overview of cell membranes. The site presents the information as a tutorial with multiple choice questions to guide the learner. Very well designed site on cell membranes.