By Eugene F. Provenzo Jr., Asterie Baker Provenzo
Simple yet relaxing experiments, played with universal home items, educate teenagers ideas of sunshine, elasticity, viewpoint, gravity, air strain, optics, extra. directions, illustrations.
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Extra info for 47 Easy-to-Do Classic Science Experiments
Blow vigorously into it. With a little practice and good lungs, you should be able to get the egg to jump out of the cup. You might even be able to get it to land in the second cup! Air Glue Air pressure is responsible for many “scientific tricks,” such as the one illustrated below. You can make a quarter stick to wood without using glue, tape or any other adhesive. How to Stick a Quarter to Wood with Air MATERIALS quarter wood side of a piece of furniture or a door KEY TERMS Air pressure: Pressure caused by the weight of the air at the top of the atmosphere as it presses down upon the air beneath it.
Cut one disk like a pie, into four slices ½ inch by ½ inch. Stick the four needles into the remaining disk of cork to form a cross. On the end of each needle fit a small piece of cork with a piece of mothball glued to it as illustrated below. Be sure that you glue the “camphor” onto the cork and attach the pieces of cork to the needles exactly as shown below. If you like, you can photocopy or otherwise copy the pattern below for a pair of dancing figures. Cut out the pair and glue the tab to the top of the center cork.
When set in the water, the device will continue spinning on the surface of the water for several days. PERPETUAL DANCERS PATTERN 2. Air Pressure Air “Boils” Water We live at the bottom of an ocean of air. This air, which is essential to all forms of life, is really a mixture of gases. Just as solids and liquids are affected by the forces of gravity, so are the gases in the air. They occupy space; they have weight. The pressure caused by the weight of air can help you perform some amazing scientific magic tricks.
47 Easy-to-Do Classic Science Experiments by Eugene F. Provenzo Jr., Asterie Baker Provenzo