Science, Tech, Math › Science Fizzy Sparkling Lemonade Made With Science Share Flipboard Email Print Foodcollection RF, Getty Images Science Chemistry Projects & Experiments Basics Chemical Laws Molecules Periodic Table Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated January 06, 2020 Relax and enjoy a refreshing glass of lemonade while doing science! Here's an easy way to turn ordinary lemonade into fizzy sparkling lemonade. The project works on the same principle as the classic baking soda and vinegar volcano. When you combine an acid and baking soda, you get carbon dioxide gas, which is released as bubbles. The acid in the volcano is acetic acid from vinegar. In fizzy lemonade, the acid is citric acid from lemon juice. Carbon dioxide bubbles are what give soft drinks their fizz. In this easy chemistry project, you're simply making the bubbles yourself. Fizzy Lemonade Ingredients You could do this project with any lemonade, but if you make your own it won't end up insanely sweet. It's up to you. For the lemonade base you need: 2 cups water1/2 cup lemon juice (contains citric acid and a smaller amount of ascorbic acid)1/4 cup sugar (sucrose) You'll also need: sugar cubesbaking soda (sodium bicarbonate) Optional: toothpicksfood coloring Make Homemade Fizzy Lemonade Mix together the water, lemon juice, and sugar. This is tart lemonade, but you'll sweeten it in a bit. If you like, you can refrigerate the lemonade so you won't need to add ice to chill it later.For kids (or if you're a kid at heart), draw faces or designs on sugar cubes using toothpicks dipped in food coloring.Coat the sugar cubes with baking soda. You can roll them in the powder or shake sugar cubes in a small plastic bag containing baking soda.Pour some of your lemonade into a glass. When you're ready for the fizz, drop a sugar cube into the glass. If you used food coloring on the sugar cubes, you can watch the lemonade change color.Enjoy the lemonade! Expert Tip Another option, besides food coloring, is to paint the sugar cubes with an edible pH indicator. The indicator will change color according to whether it's on the powdered sugar cube or in the lemonade. Red cabbage juice is a good choice, but there are other options you can find in your kitchen.Any acidic liquid will work for this project. It doesn't have to be lemonade! You could carbonate orange juice, limeade, grapefruit juice, or even ketchup (maybe not so tasty, but it makes a nice volcano). Got another lemon? Use it to make a homemade battery.