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Showing results 1 to 12 of 12
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Latent Prints
Source Institutions
In this activity, learners examine fingerprints. Learners leave a hidden print on a surface and then make their own print detecting powder from graphite (found in pencils).
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Odors Aloft
Source Institutions
Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.
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DNA Extraction
Source Institutions
Learners use a simple process to extract DNA from strawberries.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-738.jpg?itok=VmYyAekW)
Salting Out
Source Institutions
In this activity, learners create a mixture of water, alcohol and permanent marker ink, and then add salt to form a colored alcohol layer on top of a colorless water layer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-488.png?itok=k4QCd7kw)
Pollution Diffusion
Source Institutions
Learners design their own experiment to investigate how pollution diffuses through ground material.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-114.png?itok=QrozW1sb)
Lost Labels
Source Institutions
In this experiment, learners will conduct chemical and physical tests to identify mystery substances.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-688.jpg?itok=28Wj8pQS)
Inner Space
Source Institutions
In this activity, learners discover that there is space between molecules even in a cup "full" of water. They first fill a cup with marbles, and then add sand to fill the gaps between the marbles.
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Of Cabbages and Kings
Source Institutions
This lesson gives full instructions for making cabbage juice indicator, a procedure sheet for learners to record observations as they use the indicator to test materials, and extension activities to d
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Matter of Degree
Source Institutions
In two separate bags, learners mix water with Epsom salts and detergent.
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Reaction: Yes or No?
Source Institutions
In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.
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Density Rainbow
Source Institutions
In this activity, learners mix several sugar solutions to investigate the property of density. Each sugar solution has a different density and color of the rainbow.
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Sticky Situation
Source Institutions
In this activity, learners separate the protein from milk and and use it to make their own glue.