In this project, students will create their own carbonated beverage using household ingredients and explore the chemistry behind carbonation and fizzing reactions. They'll test different ingredient combinations to see which produces the most fizz.
If the amount of citric acid is increased, then the homemade soda will produce more fizz due to a greater reaction with baking soda.
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Measure 100g of baking soda and 50g of citric acid.
Add 200g of sugar to 1 liter of water and stir until dissolved.
Divide the solution into 3 plastic bottles using a funnel.
Add different amounts of citric acid to each bottle.
Add equal amounts of baking soda to each bottle.
Quickly cap the bottles tightly and shake to mix ingredients.
Observe the amount of fizz produced in each bottle.
Record the results and compare the fizz levels.
Clean up and dispose of the chemical mixtures properly.
The bottle with the most citric acid is expected to produce the most fizz due to a stronger acid-base reaction with the baking soda.
Amount of citric acid
Amount of fizz produced
Volume of water, Amount of sugar, Amount of baking soda
Wear safety goggles and gloves to avoid skin or eye irritation from citric acid and baking soda.
Create a clear chart to show fizz levels for different recipes.
Explain the chemistry behind carbonation to the audience.
Include pictures of your experimental process.
