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Snacks tagged with "density"

Science activity demonstrating buoyancy and semipermeability in soap bubbles
Bubble Suspension

Soap bubbles float on a cushion of carbon dioxide gas.

Science activity that demonstrates fluid pressure and buoyancy
Condiment Diver

As René Descartes (almost) said, "I sink, therefore I am."

Science activity that demonstrates convection
Convection Currents

Make your own heat waves in an aquarium.

Science activity that demonstrates the effect of air density on sound
Conversation Piece

A balloon acts as a lens to focus sound.

Science activity that demonstrates effect of temperature on density
Cool Hot Rod

Objects change size when heated or cooled.

Science activity that demonstrates a heat engine
Dipping Bird

A dipping bird seems to go forever—but it's not perpetual motion.

Science activity measuring density of a liquid
Eyedropper Hydrometer

Construct a simple hydrometer to compare the densities of solutions.

Science activity experimenting with a frozen water balloon
Ice Balloons

Create and examine an ice balloon.

Science activity to investigate convection
Inverted Bottles

Watch the rise and fall of hot and cold fluids.

Science activity that demonstrates differences in density
Klutz-Proof Density Column

This density column always returns to its original three layers.

Science activity using levitating magnets to model Earth’s atmosphere
Magnetic Atmosphere Model

Levitating magnets show how the Earth’s atmosphere stacks up.

Science activity that explores the relationship between volume, density, and pressure
Out of Sink

Make a reverse Cartesian diver.

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Attribution: Exploratorium Teacher Institute