The Non Prophets: An Austin-based Internet Radio Show The best free cultural & educational media on the web Featured | Ransom Note The Battle of Liver and Potato - HowStuffWorks In the battle of liver and potato, your kids will learn a lot about little bits of food. Make sure your children are careful with sharp knives. Have them wash their hands after handling liver. Make sure they don't drink hydrogen peroxide; they should wear goggles to avoid getting hydrogen peroxide in their eyes. What You'll Need:PotatoLiverKnifeCutting boardGogglesHydrogen peroxide (3% solution)2 test tubes (or similar shaped glasses)RulerDish soapScience stirrer (or coffee stirrer)Paper and pencilHow to Create the Battle of Liver and Potato: Step 1: Have your children cut small, equal-size pieces of raw liver and potato. Step 2: Make sure they put on their goggles. Step 3: Have your kids add one drop dish soap to each test tube, and make sure they stir gently. Step 4: At the same time, they should place a piece of liver in the first test tube and a piece of potato in the second. For more super science projects for kids, check out:
The Atheist Experience TV Show Letters of Note Stuff White People Like Science Projects - Lemon Power The lemon battery is called a voltaic battery, which changes chemical energy into electrical energy. The battery is made up of two different metals (the steel paper clip and the copper wire). These are called electrodes, which are the parts of a battery where electric current enters or leaves the battery. The electrodes are placed in a liquid containing an electrolyte, which is a solution that can conduct electricity. In a solution of water and an electrolyte, like the acid in the lemon, an excess of electrons collects on one end of the electrodes. Touching the electrodes to your tongue closes the circuit and allows an small electric current to flow. The tingle felt in your tongue and the metallic taste is due to the movement of electrons through the saliva on your tongue.
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