How to Make a Soda Pop Geyser

This is a great experiment that results in an explosive event! My son and I tried this at his birthday party and all the boys loved it! For best results and full participation from everyone, make sure you buy a 2-liter bottle of soda and a roll of mentos for each person at the party. This will make a mess and is an outdoor activity, but it is one party no one will soon forget.

Difficulty: Easy

Instructions

Things You'll Need:

• A roll of Mentos mint candies, unopened.
• A 2-liter bottle of coke or pepsi soda
• A piece of ordinary paper
• Enough soda, mentos and paper for everyone to use thier own.

1. Choose an outdoor location; one away from any cars, houses, etc. A flat, wide open area is best. Make sure you have a garden hose handy to clean the area when you are done with your experiment.

2. Carefully open a 2-liter size bottle of soda pop. Warm diet soda works best. Do not shake the bottle before opening.

3. Roll up the piece of paper and shape the piece of paper into a tube or funnel that fits over the neck of the 2-liter soda bottle.

4. Open the roll of Mentos ment flavored candies and quickly, but carefully, with the paper funnel in place, drop the whole roll of candies into the soda bottle. Move away immediately!

Tips & Warnings

• We tried several types of soda for this experiement and found Diet Coke works best. Pepsi and Dr Pepper worked well, Sprite did not shoot as high.
• We tried to drop other things into the soda, such as peanuts, tictac candies, life savers, etc., but the Mentos mint flavored candies worked the best.
• We learned quickly, DO NOT STAND OVER THE SODA BOTTLE when you drop in the candy! You will get a face full of soda.
• The geyser will shoot at least 8 feet into the air. THIS IS AN OUTDOOR ACTIVITY!
• Do not shake the soda bottle before opening it.
• ADULT SUPERVISION IS HIGHLY RECOMMENDED!

Resources

• Twitter Blogs and Happenings
• More Articles on Bukisa
• Additonal Resources on Associate Content
• Build your Twitter Followers
• Summer Craft Idea - Recycle Crayons
• How to Build a Washable Camping Table

[makaksa]

on 6/30/2009 Sounds like fun!

[edieness]

on 5/18/2009 I lvoe that you took this to the next level by trying different sodas. Fun.

[krm479]

on 2/2/2009 My son went thru 3 bottles of soda and 3 rolls of mentos, then asked the church youth group to do it as a contest to see who could shoot the highest! They tried several types of soda, the diet colas worked best.

[sneedc]

on 1/31/2009 FUNNY! My boys are teens and will definitely be trying to take someone's eye out with this newfound thrill! 5* I don't know whether to try it or not, but it does sound cool.

[krm479]

on 10/24/2008 My son went through a 3 rolls of mentos and 3 2 liters bottles of soda! He had a blast (literally)!