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The Pulse of Gravity
Source Institutions
In this astronomy activity (page 3 of the PDF), learners will examine the effects of gravity on a person’s pulse and explore how gravity can differ from planet to planet.
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Lava Lamps
Source Institutions
Learners observe working lava lamps to understand how they work (included in PDF link).
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Convection Current
Source Institutions
In this activity, learners make their own heat waves in an aquarium.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-693.jpg?itok=AZ43fTrT)
Pie-Pan Convection
Source Institutions
It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food coloring.
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Test Density with a Supersaturated Solution
Source Institutions
Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.
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Float Your Boat
Source Institutions
In this physics activity, learners will explore buoyancy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-303.gif?itok=3-X_7Obk)
Layers of Liquids
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Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense.
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Volume, Mass, and Density Boxes
Source Institutions
This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density.