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Eddy Currents
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In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.
Gel Electrophoresis
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In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.
Cake by Conduction
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In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.
Stretch the Chain and See the Light
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In this activity, learners use their strength to light a light bulb. A chain made from paper clips is placed in series with a battery and flashlight bulb.
Kosher Dill Current: Make Your Own Battery!
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This is an activity that demonstrates how batteries work using simple household materials. Learners use a pickle, aluminum foil and a pencil to create an electrical circuit that powers a buzzer.
Magnetic Pendulums
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In this activity and demonstration about electricity and magnetism, learners observe how the current generated when one copper coil swings through a magnetic field starts a second coil swinging.