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Cell Diffusion Lab using Gelatin or Agar
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This is a remix of the Exploratorium Teacher Institute's Agar Cell Diffusion resource. It offers an alternate recipe for the cell blocks using plain gelatin instead of agarose gel.

Link to original resource: https://goopenva.org/courses/agar-cell-diffusion

Subject:
Living Systems and Processes
Science
Material Type:
Activity/Lab
Date Added:
11/29/2019
Insane Membrane | Cooking Up Science with Miss America
Unrestricted Use
CC BY
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Learn about semipermeable membranes. If you put eggs and sand through a colander, would they both fall through? Probably not. Only the sand would actually pass through the holes of the colander because the eggs are too large. The colander acts as a semipermeable membrane, allowing some materials through but not others. Let's explore some other semipermeable membranes -like what surrounds our cells to help keep our bodies working and healthy. And eggs are like giant cells. They are a perfect thing to use to explore the science of semipermeable membranes, osmosis, and diffusion. We'll even experience a cool chemical reaction when we place an egg in vinegar. What do you think will happen when this chemical reaction is complete? Developed for grades 6-8 and correlated with Virginia Standards of Learning.

Subject:
STEM/STEAM
Science
Scientific and Engineering Practices
Material Type:
Activity/Lab
Lesson
Visual Media
Author:
Trish Reed
Date Added:
05/28/2021