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Magic of Electrons
Activity 1.1 Comparing Static and Current Electricity
Purpose
What usually happens when you run a plastic comb through your hair on a dry cold day? Usually, your hair will stand out from your head. When you move the comb back and forth, the hair will follow. This is caused by an attraction and the movement of electrons. This movement of electrons produces electricity. Two thousand years ago, the Greeks discovered the same thing with a material we now call amber. When they rubbed the amber with some other materials, it became charged with a mysterious force. The charged amber attracted such materials as dried leaves and wood shavings; much like the comb attracts your hair and causes it to move around. The Greeks called the amber elektron, which is how the word electricity came about.
Electricity is either standing still or moving. When it is standing still, it is called static electricity. When it is moving, it is called current electricity. In this activity, you will create two models that will allow you to observe the behavior of electrons and the current they produce.
Equipment Battery- Current electricity:
· glass jars/plastic cups
· copper strips and copper wire
· zinc strips and galvanized nails
· Enough vinegar to cover 1” of the strips or pipes
· jumper wires
· alligator clips
· LED light bulb
· Multi-meter For a detailed discription of how to build a Vinegar Battery, view the video that was shown in class. Click on the video link at the end

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