Curated OER
Cell Observation Exercise
Young scholars take measurements of the distance between the objective and the slide when in focus with each objective. They determine the diameter of the field of view at each power in order to determine the size of the cells being...
Curated OER
Molecules Rock
Fourth graders engage in this interactive lesson which illustrates diffusion and osmosis and shows them that molecules of life move dynamically and powerfully. They must analyze their lab orally and in writing.
Curated OER
An Egg-cellent Osmosis Experiment
Students investigate the problem of osmosis by conducting an experiment. They use eggs with the shells dissolved to tell whether fluid can move across the membranes. The experiment provides high interest for all kinds of students to keep...
Curated OER
Cells Study Questions and Definition
In this cells worksheet, students define 14 words associated with cells. They answer 12 short answer questions about the structure and function of the cellular system.
Curated OER
Discovering the Structure of the Atom
Students investigate atomic and nuclear structure of matter by researching historical atomic theories. Students examine Rutherford's studies and discover that many scientific conclusions change over time as new data is collected.
Khan Academy
Khan Academy: Osmosis and Tonicity
Provides an overview of osmosis and tonicity and looks at how osmosis works, as well as the role it plays in the water balance of cells. Describes hypertonic, isotonic, and hypotonic solutions and their effect on cells.
Texas Education Agency
Texas Gateway: Cell Homeostasis: Osmosis
Learn how water flows in and out of solutions in this interactive tutorial.
Science Education Resource Center at Carleton College
Serc: How Do Different Liquids Affect Movement of Materials Across a Membrane?
Students investigate the movement of different materials across the cell membrane of a raw egg once the egg shell has been dissolved in vinegar.
Concord Consortium
Concord Consortium: Molecular Workbench: Osmotic Pressure
View this simulation to observe the process of smaller particles moving through a semipermeable membrane. Temperature is adjustable. [Must download the simulation to engage in the activity]
CK-12 Foundation
Ck 12: Biology: Osmosis
[Free Registration/Login may be required to access all resource tools.] Describes osmosis.
CK-12 Foundation
Ck 12: Osmosis
[Free Registration/Login may be required to access all resource tools.] Tutorial defines osmosis and the difference between osmosis and diffusion. Students will learn how to distinguish solute from solvent and solution and the hypotonic,...
Biology Pages
Kimball's Biology Pages: Transport Across Cell Membranes
This site has information on how facilitated diffusion of ions takes place through proteins, or assemblies of proteins, embedded in the plasma membrane. Includes a helpful diagram.