Baking Soda and Vinegar Chemical Volcano
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The baking soda and vinegar volcano is a classic science project that can help kids learn about chemical reactions and what happens when a volcano erupts. While it's obviously not the what is a governance committee thing, this kitchen equivalent is cool all the same! The baking soda volcano is also non-toxic, which adds to its appeal—and it only takes about 30 minutes to complete. While it's fine for young explorers to tackle a simple model volcano, if you want to make the volcano a bif science project, you'll want to add the scientific method.
Here are some ideas for different ways to experiment with a baking soda volcano:. Share Yow Email. Science Activities for Every Subject. Introduction Weather. Food and Cooking.
Fire and Smoke. Chemical Reactions. Anne Marie Helmenstine, Ph. Chemistry Expert. Helmenstine holds a Ph. She has taught science courses at the high school, college, and graduate levels. Facebook Facebook Twitter Twitter. Updated January volacno, Did You Know? The cool red lava is the result of a chemical reaction between the baking soda and vinegar. In this reaction, carbon dioxide gas is produced, which is also present in real volcanoes. As the carbon dioxide gas is produced, pressure builds up inside the plastic bottle, until—thanks to the detergent—the gas bubbles out of the mouth of the volcano.
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Last Updated: March 3, References. This article was co-authored by Bess Ruff, MA. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. This article has been viewed , times. Making a soda-bottle volcano is a classic science experiment that doubles as a great excuse to make an explosive mess. There are multiple combinations of materials that will lead to a fun explosion.
Two of the classic soda-bottle volcanos are made with soda and Mentos candy mints which can produce eruptions of up to 18 feet if done correctly or a combination of baking soda and vinegar. Gathering a few household items can lead to a fun afternoon of volcanic explosions in the backyard. To make a soda bottle volcano, first combine 2 parts vinegar, 1 part water, and a squirt of dishwashing liquid. Then, put the mixture in an empty 2-liter soda bottle and add a spoonful of baking soda, which will react with the vinegar to make your volcano erupt.
Alternately, you can drop Mentos candies into a 2-liter bottle of cola. You can then watch the eruption, which happens when the candies react with the carbon dioxide in the soda to push the liquid out of the bottle. Just be sure to move away quickly, since the eruption can make quite a mess! To learn from our Scientist reviewer how to get all the Mentos into your soda bottle at the same time, read on! Did this summary help you?
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Avoid cardboard, as it will likely be too flimsy to support your project. You may want to paint it, cover it with moss, apply green felt to indicate grass, attach miniature trees, etc. Attach a full, unopened, 2-liter soda bottle to the base. Since you will build the volcano around the bottle, be sure to place it in the center of the base. How you attach it will depend on what your base is. A caramel-colored soda will probably look the most like lava when your volcano erupts, so avoid clear drinks.
Both diet and regular soda work for this experiment, but diet soda erupts higher. If gluing the bottle, let the bottle reach room temperature. A cold, sweating soda bottle will never glue properly. Avoid using hot glue, which might melt the bottle and make a mess.
Build the volcano around the bottle. For a textured look, shape some chicken wire into a lumpy, mountainous cone around the bottle. For a more solid look, shape green, gray, or brown play-dough or clay around the bottle.
Ensure you have access to the opening so you can add Mentos or baking soda for the eruption! Paint the volcano. Use shades of brown and orange around the top and add some green to look like grass. You may even want to press pebbles, dirt, and moss into the surface to give it a more natural appearance.
Method 2 of Gather the necessary materials. To make this type of volcano, you will need a two-liter bottle of cola, a roll of Mentos brand candy mints, and a large open area. Position the volcano in a large, outdoor area and open the soda bottle.
Avoid doing this experiment inside, as it will create a huge, sticky mess. Make sure your outdoor area is also uncovered since the soda can erupt quite high. Remove the cap from the soda bottle. Warn any spectators to stand back. Prepare a whole roll of Mentos to drop into the bottle. When Mentos come in contact with the soda, a reaction occurs that causes the carbon dioxide gas in the soda to push the liquid out of the bottle.
The more Mentos you drop in all at once, the greater the eruption; however, this can be difficult. Method 1: Make a paper tube with the same width as the bottle neck. It should be long enough to fit the number of Mentos you want to put inside. Place an index card over the bottle mouth, place the tube over the hole, and fill it with Mentos. When you are ready to erupt, you will slide the card out, releasing the Mentos into the bottle. Method 3: Insert into the bottle a funnel with a mouth that is wide enough to allow the Mentos to pass, but small enough to fit inside the neck of the bottle.
You will drop the Mentos through the funnel and remove the funnel once the Mentos are in the bottle. Release the Mentos into the bottle and run. Getting all the Mentos to fall in the bottle simultaneously is quite hard.
If done incorrectly, the volcano will only rise a few inches or so. Practice getting the Mentos to drop simultaneously a few times before wasting your bottle of soda. Once the Mentos drop into the bottle, run a few feet away to observe the eruption! If using the paper tube method, remove the card holding the Mentos in place and let them all slide into the bottle at one time. If using the tape method, simply drop the piece of taped-together Mentos into the mouth of the bottle. If using the funnel, drop all the Mentos into the funnel at the same time.
Method 3 of For this volcano, you will need milliliters Use red-wine vinegar for the best lava coloring. Alternatively, you can also add red or orange food coloring to white vinegar.
You can use a smaller plastic bottle, but will have to adjust the ingredients accordingly. Combine vinegar, water, and a squirt of dishwashing liquid. Add the ingredients to the volcano. The liquid soap breaks the surface tension of water, therefore creating a larger eruption.
Place the volcano on a plastic-covered table or over a linoleum floor. If the weather is agreeable, place the volcano outside. Add a spoonful of baking soda to the mixture. The baking soda will react with the vinegar mixture and cause your volcano to erupt! If you want a larger explosion increase the amount of vinegar and baking soda used.
When you add vinegar to bicarbonate of soda, a chemical reaction occurs — the result is "carbonic acid. The mixture instantly separates into a gas and a liquid, producing carbon dioxide and water. Not Helpful 30 Helpful Plain water will not react with the bicarbonate. The main ingredients are the vinegar and bicarbonate. Not Helpful 35 Helpful Pressure builds over great periods of time, and eventually they erupt and release all the pressure at once.
Not Helpful 32 Helpful Not Helpful 26 Helpful It would be a much bigger explosion. If you do that, make sure that you run away quickly or you will be covered in soda.