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❖½ cup Citric Acid(Ball)

❖1 cup Baking Soda

(Arm and Hammer)

❖½ Epsom Salt (Magnesium Sulfate)

❖1 tsp water (Any Kind)

❖2 tsp essential oils

(Nature's Bounty- Earthly Elements)

❖½ Corn Starch (Great Value)

❖1 tsp Coconut Oil (Hy-Vee)

❖A few drops Food Coloring (McCormick)

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  • Whisk
  • tablespoons/teaspoons
  • 3 Bowls
  • 1 containers (with 20 cups of water)

Materials

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Materials For DIY Bath bomb

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Materials for experiment

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Constant variables

  • Same amount of water (20 cups of water)
  • Same container
  • Same weight/ size bath bomb

Independent variables

  • One bath bomb is store bought
  • One bath bomb is homemade

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Question

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Our question is…..

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Which bath bomb dissolves quicker... Lush Brand or DIY bath bomb?

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  • To make your DIY bath bomb you will need ½ cup citric acid, 1 cup baking soda, ½ cup epsom salt, 1 tsp of water, ½ cup cornstarch, 1 tsp coconut oil, 2 tsp essential oil, food coloring, 3 bowls or cups to mix ingredients, a whisk, and a mold
  • Mix all of the dry ingredients (citric acid, baking soda, epsom salt and cornstarch) in a bowl
  • Then melt the coconut oil and put it in the bowl with the dry ingredients and add the water and essential oil. Mix completely so it sticks together.
  • In the other bowls put the same as above mixture and a few drops of food coloring .
  • Finally, put your colored mix into the mold and let it sit for 24 hours or speed the process with only 5 hours in the freezer.

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Procedure for DIY bath bomb

Procedure for experiment

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  • To do the experiment you will need your diy bath bomb, lush bath bomb a container with 20 cups of agua and a timer.
  • Once your container has the agua, drop the diy bath bomb into the water and start your timer and record how long it takes to fluidify.
  • Then clean your container and put 20 cups of water in again.
  • Once the container has water put in your lush bath bomb and start the timer. Again, time until mixture is fluidified.

Procedure

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We predict that the store bought bath bombs will dissolve faster because they have the exact ingredients/chemicals. Unlike homemade bath bombs that have ingredients/chemicals to substitute for the real ingredients.

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HYPOTHESIS

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The purpose of our experiment is to find out which bath bomb dissolves quicker, the DIY bath bomb or Lush bath bomb. What makes a bath bomb dissolve is the citric acid and baking soda. This creates an eruption of fizz and colors. A bath bomb is a hard-packed mixture of dry ingredients which has an effervescent appearance when wet. They are used to add essential oils, scents, bubbles and colors to bath water. The reason we were interested in this idea is because bath bombs are getting really popular and they also seem really fun to make. We have never tried bath bombs before and thought it would be interesting to make them and test how quickly they dissolve.

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Purpose

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As soon as we dropped the DIY bath bomb in the water it started to fizz. It dissolved in 1 minute and 15 seconds and turned the water a violet and pink color. Once we refilled the bucket and dropped the Lush bath bomb in it slowly dissolved. As a result the Lush bath bomb took 18 minutes and 15 seconds. Some errors that occurred during our experiment were that the DIY bath bomb divided in two. We also had problems with the timer, It didn’t start on time so we followed the clock. We reject our hypothesis because we discovered that the DIY bath bomb dissolved quicker than the Lush bath bomb.

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Conclusion