STEM 4 Everyone
Blog by Shelly Goel
Chemical Reactions take place all around us and are not only fun and exciting to experiement with but are also important for our survival! A chemical reaction is when two or more susbtances join together and result in a new substance! Whether you are baking a cake, striking a match, or even digesting food, you are conducting a chemical reaction. Below are some experiments you can do at home to see cool chemical reactions!
Iron Rusting Lighting a Candle Fireworks Exploding Photosynthesis Digesting Food
Magic Milk Experiment
Materials:
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2 cups of milk
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Assorted Colors of Food Coloring
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1 plastic tray or wide container
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1 cotton swab
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1 tablespoon dish soap
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Directions:
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Pour milk into the container to completely cover the bottom of the container.
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Add one drop of food coloring in various locations in the milk. It is important that you do not stir the mix!
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Dip one end of the cotton swab into the dish soap.
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Place the soapy end of the cotton swap in the middle of a food coloring drop, and hold it there for a few seconds.
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Observe the burst of color and have fun repeating this experiment at different places of the container.
Elephant Toothpaste
Materials:
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1 large plastic tray
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1 teaspoon of dry active yeast
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4 tablespoon of water
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1 plastic cup
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couple of drops of dish soap
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1 bottle of food coloring
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1/2 cup of hydrogen peroxide (6%)
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1 clear plastic bottle
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gloves
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goggles
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Directions:
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Sqirt a couple drops of dish soap and a couple drops of food coloring in the clear plastic bottle.
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Make the Yeast Solution
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Pour the mixture into the clear plastic bottle.
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Stir the mixture until all clumps have completely disolved.
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Mix 1 Tsp of dry yeast and 4Tbsp of water in the plastic cup.
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CAUTION- Have a parent do the next step as hydrogen peroxide is dangerous.
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Wear goggles and gloves for safety.​
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Measure 1/2 cup of hydrogen peroxide and quickly and carefully pour it into the clear plastic bottle
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Enjoy the spurting Elephant Toothpaste!
Making Flubber
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Materials:
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1 ziploc bag (small)
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1/2 cup of Elmer's glue
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1 teaspoon Borax powder
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2 cups warm water
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few drops of food coloring
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Directions:
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Making Borax Solution
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Heat 2 cups of water.​
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Mix 1 teaspoon of the Borax powder with the water.
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Set it aside to cool.
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Pour the glue into the ziploc bag so that it fills about 1/8 of the bag.
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Add a few drops of food coloring in the bag. Zip the bag so that it is closed.
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Start mixing the food coloring with the glue by squeezing the abg. It is important that the bag stays tightly zipped and the glue stays at the bottom of the bag to avoid messes.
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Once the food color and glue are completely mixed, add 3 tablespoons of the Borax solution.
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Zip the bag again anf continue squeezing the mixture. You will notice that the mixtures starts solidifying.
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Keep on squeezing the mixture until you have gotten the consistency you want. The Flubber should be done when it no longer sticks to the side of the bag.
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Enjoy playing with your Flubber! Be sure to keep your area clean when playing with the Flubber. The Flubber can be kept for a maximum of 1 to 2 weeks if kept clean.
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If the Flubber is too slimy, add some more Borax Solution. If it's dry, run it under some water. Be sure to pour out the excess liquid from the bag.