Warm Chemistry

Warm Chemistry After that long break, I would like to do a very simple experiment to start. This one is pretty common, most people probably know this experiment, but no one realized that there was more to it. Things you'll need: Yeast, hydrogen peroxide, a beaker, and a thermometer. Pour 200 ml of hydrogen peroxide …

The Sediment of Lead (II) Nitrate

The Sediment of Lead (II) Nitrate Today, I'm going to do a common experiment about the sediment of Lead (II) Nitrate. This is a very quick demonstration showing that two solids can react together. White lead nitrate and white potassium iodide react to make yellow lead iodide. I added 5 grams of each chemical into 95ml  of water so I could have 5 % of …

Density Column

Density Column Let's start off with an easy experiment today. Create a colorful column with three liquids stacked on top of each other inside a test tube. Things you'll need: test tubes, pipet, food coloring, light or dark corn syrup, vegetable oil, and water. Pour about 3 ml of corn syrup into the test tube. …

Ice is Sticky

Ice is Sticky I have an experiment that uses only ice. Things you'll need: 2 ice cubes. Press the flat sides of two ice cubes together. Slowly count to thirty, then let go one of the ice cubes. What happened? When you pushed the two ice cubes together, you created pressure between the two flat sides. …

Cold Chemistry

Cold Chemistry Endothermic chemical reaction use up heat energy, which means the end result is cool to the touch. Use Alka-Seltzer to see this reaction for yourself! Things you'll need: A beaker, a thermometer, an Alka-Seltzer tablet, ice, and water. Fill the beaker with ice. Add enough water to cover the ice fully. Put the thermometer …

Invisible ink

Invisible ink We know that phenolphthalein will turn pink if you drip 2-3 drops into a chemical that is base. That gave me an idea of how to make invisible ink. Things you'll need: phenolphthalein solution, white paper, Q-tip, and ammonia-based glass cleaner (like Windex) Put a few drops of phenolphthalein onto a Q-tip. Use the …

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