Texas Education Agency
Texas Gateway: Molecular Transport Phenomena: Diffusion, Osmosis, & Related Proc
By the end of this section, you will be able to define diffusion, osmosis, dialysis, and active transport and to calculate diffusion rates.
Other
Curriki: "Beautiful Art" Cultural Diffusion
This lesson is designed to give students a conceptual understanding of cultural diffusion and the notion that ideas change people and people change ideas. It involves a teacher demonstration, student role-play, and an activity that...
NASA
Nasa: Gas Properties Definitions
Use this site to learn about basic gas properties including motion, viscosity, and compressibility. Includes links to activities for all ages.
The Association of the British Pharmaceutical Industry
Abpi: Homeostasis: Kidneys and Water Balance
A complete, self-paced lesson on homeostasis in the human body, focusing on kidney function. Students work their way through illustrated and animated tutorials, and answer review questions along the way. There is a self-checking quiz at...
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.
Massachusetts Institute of Technology
Mit: Open Course Ware: Courses: Chemical Engineering: Separation Processes
College-level chemical engineering course highlighting the general principles of separation by equilibrium and rate processes. Course topics comprise staged cascades and applications to distillation, absorption, adsorption, and membrane...
Massachusetts Institute of Technology
Mit: Open Course Ware: Supplemental Resources: Continuum Electromechanics
College-level electrical engineering and computer science textbook highlighting the applications of continuum electromechanics.
Cosmo Learning
Cosmo Learning: Introduction to Solid State Chemistry
A collection of video lectures from a course that investigates the application of basic chemistry principals to engineering systems. The course draws from industrial practice to give examples of the application in engineering systems. In...
PBS
Pbs Learning Media: Diffusion
Students are asked to explain the process shown as the red material is placed in the colorless liquid.
Wolfram Research
Wolfram Science World: Brownian Motion
This site from ScienceWorld gives a brief description of Brownian motion. It also goes on with a detailed series of formula derivations utilizing calculus. Links to related topics and definitions are given.
Texas Instruments
Texas Instruments: Diffusion and Equilibrium
Students will observe how equilibrium is reached when salt is added to water.
Science Education Resource Center at Carleton College
Serc: Diffusion Demonstration
An interactive demonstration where students make observations of the process of diffusion. Students draw and record observations, make predictions, and make comparisons between what they're observing and how a cell membrane works.
Science Education Resource Center at Carleton College
Serc: Mini Lab 14: Molecules in Motion
In this inquiry-based lab, learners investigate the phenomenon of molecular motion. They will understand the relationship between temperature and molecular speed, the relationship between concentration and diffusion rate, and what...
Science Education Resource Center at Carleton College
Serc: Investigating Diffusion of Molecules in Liquid
Scientific inquiry activity where students investigate how molecules move in liquid. They will observe that molecules in liquid move in a random manner and that heat will increase and cold will decrease the speed of molecular movement in...
Simon Fraser University
Chem1 Virtual Textbook: Some Consequences of Random Molecular Motion
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with random molecular motion and topics such as diffusion and effusion.
Estrella Mountain Community College
Online Biology Book: Transport in and Out of Cells
This resource is an article about the cell membrane, and its role in water and solute movement in and out of the cell.
Ohio State University
Ohio State University: Cell Membranes
Diagrams and animations help you understand the basics of cell membrane structure and function.
Biology 4 kids
Biology4 Kids: Passive Transport Taking the Easy Road
This quick reference page explains the different types of passive transport in cells.
Exploratorium
Exploratorium: Science Snacks: Ocean Acidification in a Cup
In this activity, you can observe how ocean acidification can have big consequences. This activity has students creating a cup that has a carbon dioxide-rich atmosphere that allows them to watch how the water changes beneath the atmosphere.
What2Learn
What2 Learn: Cell Transport Gcse Biology Revision
Two learning games, created by visitors to What2Learn, provide a fun way to learn how cells transport molecules.
CK-12 Foundation
Ck 12: Biology: Active Transport
[Free Registration/Login may be required to access all resource tools.] Introduction to active transport.
CK-12 Foundation
Ck 12: Biology: Diffusion
[Free Registration/Login may be required to access all resource tools.] Describes passive transport and diffusion.
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: Biology: Protist Characteristics
[Free Registration/Login may be required to access all resource tools.] Discusses the habitat, motility, nutrition, and reproduction of protists.