Carnegie Mellon University
Chem Collective: Osmotic Pressure
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...
Science Education Resource Center at Carleton College
Serc: Osmosis Eggs
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.
Science Education Resource Center at Carleton College
Serc: Investigating Osmosis Using Water and Gummy Bears
In this biology classroom lab, young scholars investigate the affect of soaking a Gummy Bear in water. They collect measurements of height, width, and mass before and after the soaking of the candy overnight. Students calculate % change...
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,...
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.
City University of New York
Brooklyn College: Osmosis Interactive Activity
Great activity with clear background information. Try out the lab using osmosis to calculate molecular weight.
City University of New York
The World of Cells: Osmosis
This definition and explanation osmosis shows how water diffuses from regions where it is in high concentration to regions where it is in low concentration.
McGraw Hill
Mc Graw Hill: Temperature, Osmotic Regulation and the Urinary System Postest
Answer these seven multiple choice questions about osmotic regulation in the Urinary system.
McGraw Hill
Mc Graw Hill: Temperature, Osmotic Regulation and the Urinary System Pretest
Answer these seven questions about osmotic regulation in the Urinary system. After hitting submit, review the concepts tested.
Science Education Resource Center at Carleton College
Serc: Egg Experiments
Two experiments where students investigate with uncooked eggs. In the first investigation, they explore how to remove the eggs outer shell while keeping the rest of the egg intact. In the second, students attempt to shrink the egg...
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.
Bryn Mawr College
Serendip: Investigating Osmosis
Brief text summary of what students learn in the Investigating Osmosis lab along with links to download Student Handouts and Teacher Preparation Notes in PDF or Word formats. Students design and run an experiment to demonstrate osmosis...
Science Struck
Science Struck: Hydrostatic Pressure vs. Osmotic Pressure
Defines and explains what osmotic and hydrostatic pressure are, how to calculate them, their applications, and the instruments used to measure them.
Science Struck
Science Struck: Examples of Osmosis
Explains what osmosis is and provides a variety of examples.
Science Struck
Science Struck: Osmosis vs. Diffusion: How Are They Different?
Explains the processes of osmosis and diffusion using labeled illustrations, discusses how they occur and gives examples.
Concord Consortium
Concord Consortium: Diffusion, Osmosis and Active Transport
This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. (Requires Java)
Other
Ed Tech/osmosis
An online tutorial that takes you through an exploration of the processes of osmosis and osmotic pressure.
Bryn Mawr College
Serendip: Diffusion Across a Selectively Permeable Membrane
Brief text summary of what students learn in the Diffusion across a Selectively Permeable Membrane lab, along with links to download Student Handouts and Teacher Preparation Notes in PDF or Word formats. Main teaching points include...
CK-12 Foundation
Ck 12: Life Science: 2.10 Diffusion
Understand the processes of osmosis and diffusion.
Other
Biology Simulations: Diffusion and Osmosis
This simulation can be used to study molecule movement across a semipermeable membrane.
Sophia Learning
Sophia: Osmosis: Lesson 2
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...