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Worksheet
Curated OER

Diffusion across a Selectively Permeable Membrane

For Students 7th - Higher Ed
Lab groups fill a section of dialysis tubing with glucose and starch solutions and suspend it in a water bath. They use iodine as a starch indicator and a glucose test strip to find out if either of the materials crossed the selectively...
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Lesson Plan
Curated OER

Diffusion Lab

For Teachers 4th - 8th
Students study diffusion and how it applies to the human body.  In this diffusion lesson students complete a lab activity and discuss what they learned. 
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Lesson Plan
LABScI

Cell Diffusion and Permeability: The See-Thru Egg Lab

For Teachers 9th - 12th Standards
Create a model to study a microscopic phenomenon. The seventh of 12 lessons uses an egg (without its shell) to represent a cell membrane. Using different solutions, learners explore the concept of cell diffusion. They monitor...
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Lesson Plan
Coastal Carolina University

Osmosis and Diffusion Lab: Honey I Blew Up the Bear

For Teachers 6th - 9th Standards
Beginning biologists explore passive transport through two demonstrations and a hands-on inquiry. Spray air freshener from one spot in the classroom and have class members raise their hands as the scent reaches them. Also, place a teabag...
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Interactive
Concord Consortium

Diffusion of a Drop

For Students 6th - 12th Standards
Trying to learn through diffusion rather than simply studying the material rarely works for scholars. This simulation helps make learning diffusion fun. Pupils add a drop of dye to water and observe the diffusion as the molecules bounce...
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Lesson Plan
Curated OER

Cell Size and Shape; Diffusion and Osmosis Processes

For Teachers 9th - 12th
Use salmon eggs as a cell model for demonstrating the movement of water over concentration gradients. Junior scientists examine the same process microscopically with an onion cell. They use a thistle tube and a semipermeable membrane to...
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Interactive
Concord Consortium

DIffusion and Molecular Mass

For Students 9th - 12th Standards
Does molecular mass affect the rate of diffusion? The simulation allows scholars to experiment with diffusion while varying the molecular mass and temperature. The timer automatically stops when a certain point is reached, making it easy...
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Interactive
Concord Consortium

Diffusion and Temperature

For Students 9th - 12th Standards
Diffusion rates change with differences in temperature. See it happen through a simulation that allows scholars to explore the rates of diffusion at five different temperatures. It also allows young scientists to trace the movement of a...
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Interactive
Concord Consortium

Diffusion Across Semipermeable Membranes

For Students 9th - 12th Standards
Mitochondria use two semipermeable membranes to work properly. Young scientists adjust the pore size for two membranes. They then observe the diffusion of two different sizes of molecules.
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Lesson Plan
Curated OER

Osmosis and Diffusion: Egg Lab

For Teachers 9th - 12th
Students examine why diffusion and osmosis happen in an egg cell.  In this diffusion lesson students demonstrate a semi permeable membrane.
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Lesson Plan
Curated OER

SA/V Ratio and Rate of Diffusion

For Teachers 9th - 12th
High schoolers calculate the SA/V ratio and volume of phenophthalien agar that are cut into different shapes. They then let ammonia diffuse into the various pieces of agar and determine the effect that SA/V had on the rate of diffusion.
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Worksheet
Curated OER

Investigating Osmosis

For Students 7th - Higher Ed
A thorough investigation of cell transport is provided when completing the assignment. The first half requires biology class members to answer questions about diffusion and osmosis with the aid of diagrams. Then they fashion an...
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PPT
Curated OER

AP Biology Lab Review

For Teachers 9th - 12th
A seventy-two slide PowerPoint that reviews several lab explorations done in an AP Biology course. For each lab there is a description, concepts, and conclusions. Many pictures and graphics make this visually appealing, but it would not...
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Interactive
Concord Consortium

Diffusion Across a Permeable Membrane

For Students 9th - 12th Standards
Oxygen and carbon dioxide freely cross cell membranes. The simulation demonstrates the diffusion of these across a permeable membrane. To create a great visual for users, it graphs the balance of molecules as it changes throughout the...
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Lesson Plan
Curated OER

Biotechnology: Drug Delivery and Diffusion

For Teachers 9th - 12th
Students discover advances in biomedical technology such as transdermal delivery and other non-invasive procedures. In lab activities, they examine how medication is given and how molecules travel, observe electrophoresis, and conduct...
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Lesson Plan
Curated OER

WET Science Lesson #5: Pass the Salt Please! (How Road Salt Affects Wetlands)

For Teachers 7th - 12th
As an anticipatory set, biologists listen to the story of Ruth Patrick, a scientist who used algae to detect water quality. They observe a demonstration of osmosis and diffusion. In their lab groups, they place Elodea stalks in...
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Lesson Plan
Curated OER

Semipermeable Membranes and Bioaccumulation

For Teachers 7th - 12th
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
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Lesson Plan
Curated OER

Osmosis in Potato Slices

For Teachers 6th - 12th
You may find this presentation helpful in setting up the classic experiment where potato wedges are used for observing the effects of osmosis. You can view the experimental setup in the text and a lab sheet in the pictures, but you will...
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Lesson Plan
Curated OER

Graham's Laws: Diffusion and Effusion of Gases

For Teachers 7th - 12th
Students conduct a series of experiments to explore Graham's law. In this chemistry instructional activity, students differentiate effusion and diffusion. They perform calculations using Boyle's, Henry's, Charles' and Graham's Laws.
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Unit Plan
MENSA Education & Research Foundation

The Cell: the Building Blocks of Life

For Teachers 5th Standards
Do you have early finishers asking what they can do next, or any budding scientists eager to learn more about plant and animal cells? Then here is a cell unit for you! The packet provides scholars with everything they need in order to...
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Lesson Plan
Curated OER

EggCELLent Diffusion

For Teachers 8th - 12th
Students examine and discuss the concepts of diffusion and osmosis. They observe the effects of diffusion on eggs by recording the change in an egg's size and the amount of liquid substance that remains.
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Lesson Plan
Curated OER

Diffusion & Osmosis with Data Analysis

For Teachers 12th - Higher Ed
Students explore principles governing diffusion and osmosis. Students perform a dialysis tubing experiment. They obtain core samples of potato in varying concentrations of sugar-water to measure water potential of the potato cells....
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Lesson Plan
Curated OER

How do Hypotonic, Hypertonic, and Isotonic Solutions Affect the Water Movement of a Cell?

For Teachers 7th - 12th
After removing the shell from a raw egg, cell biologists soak the egg in either a hypotonic, hypertonic, or isotonic corn syrup solution. They calculate the percent change in mass and compare it to the strength of the solution in a...
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Unit Plan
Steinhardt Apps

Kinetic Molecular Theory

For Teachers 9th - 12th Standards
Building off young chemists' knowledge of the states of matter, kinetic molecular theory is the focus of the unit. Eight days of lessons including multiple demonstrations, one lab experiment, directed instruction, and worksheets,...

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