Young scientists demonstrate their understanding of cell transport on this comprehensive instructional activity. Focusing on cellular structure and the different processes that allow materials to move into, out of, and...

Take your biology class on an exploration of the inner workings of cells with this multimedia presentation. Looking closely at the structure of cell membranes and the processes of osmosis and diffusion, this resource explains for...

Here is an attractive learning exercise that walks chemistry learners through a review of aqueous solutions. There are matching, short answer, and multiple choice questions dealing with boiling and freezing points, precipitate, molality,...

In this colligative properties and chemical equilibria learning exercise, students answer twenty questions including ranking solutions base on their colligative properties and determining what must happen to a reaction to reach equilibrium.

A lab activity where students learn the concept of osmosis by observing an egg in different solutions. Included is a procedure for students to follow.

This site gives information about energy needed for desalination. It gives formulas on how to determine these figures.