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COSI Quicksand
Source Institutions
In this chemistry experiment, learners get to make a very bizarre substance using corn starch and water. Is it a solid? Is it a liquid? Or is it a different kind of substance entirely?
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Dancing Raisins
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In this activity, learners will explore density and it's relationship with mass.
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Paper Cup Stool
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In this activity, learners will explore how and why weight distribution works.
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Atoms and Matter (K-2)
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In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.
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Create a Compass
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In this activity, learners use simple materials to build their own compass.
Magnetism
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In this activity, learners explore the principles of magnetism by observing how various materials interact with magnets and superconductors.
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Rubberband Rollback
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In this activity about potential and kinetic energy, learners get to roll a can across the floor and then watch it roll back to them as if by magic. This activity is always great for looks of wonder!
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Water "Digs" It!
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In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.
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Inner Space
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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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Go Fly a Kite
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In this hands-on activity, children create their own kites that can fly indoors. Learners are exposed to basic concepts of gravity and air resistance.
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A Slime By Any Other Name
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This fun video explains how to make a batch of oobleck (or slime) and why this special substance is known as a "non-Newtonian" fluid. Watch as Mr.
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Smelly Balloons
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Are balloons porous or non-porous? In this activity, learners watch an entertaining Mr. O video and conduct a simple experiment to find out.
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Big Things Come in Little Packages
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As a group, learners investigate three packages which are all the same size and shape, but have different contents. One is filled with foam, one is filled with wood, and one is filled with metal.
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Magnetism Hunt
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In this activity about magnetism (page 4 of the PDF), learners will experiment with magnets and different objects to find out that not all metals are attracted to magnets.
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Mechanical Grabber
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In this engineering activity, challenge learners to make a "grabber" that can pick up trash. Learners use simple materials to create pinchers that can grab small items.
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Current Events
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Learners model the ocean currents that carry hot water from the tropics to northern latitudes.
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Tie Dye Secret Messages
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In this activity, learners will write a secret message that only their friends will be able to read.
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If Hot Air Rises, Why is it Cold in the Mountains?
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This demonstration/activity helps learners understand why higher elevations are not always warm simply because "hot air rises." Learners use a tire pump to increase the pressure and temperature inside
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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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Chocoberry Chillers: Volume for Thought
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In this Cyberchase activity, have fun measuring volumes and enjoy a delicious shake.