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Showing results 41 to 47 of 47
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The Liquid Rainbow
Source Institutions
Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-227.png?itok=f8YLHh5J)
Eye Spy
Source Institutions
This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-445.jpg?itok=TAryZ4vx)
Tissue Paper Spray Art
Source Institutions
In this activity, learners observe color mixing and absorbency using colored tissue paper and spray bottles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-334.png?itok=DYd2wkJ1)
Heat Speeds Up Reactions
Source Institutions
In this activity, learners investigate the effect of heat on a reaction.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-783.jpg?itok=CrxoOyj1)
Water Underground
Source Institutions
Many people get water from a source deep underground, called groundwater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-349.png?itok=7krA5cTj)
Turbidity
Source Institutions
This is an activity about turbidity, or the amount of sediment suspended in water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-336.png?itok=2cQHulSq)
Carrying Charges: Testing for Conductivity
Source Institutions
Learners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up).