| Baking Soda and Vinegar Experiment | | | | drop any dough in the bottle itself. Take your time and |
| What happens when you mix baking soda and | | | | build a great volcano. |
| vinegar? Find out with this fun experiment. | | | | 3. Mix some red food coloring with warm water and fill |
| You and your kids will build a simple volcano out of a | | | | the bottle almost to the top with this red water mixture. |
| soda bottle and salt dough, then make a baking soda | | | | 4. Add liquid dish detergent to the water mixture. |
| and vinegar mixture and watch your volcano erupt. | | | | 5. Add baking soda to the water/detergent mixture in |
| You may want to do this outside. The eruption can get | | | | the bottle. |
| messy! | | | | 6. Slowly pour vinegar into the bottle and jump back! |
| Ingredients: | | | | Notice the red "lava" that flows out of your |
| • Salt dough: | | | | volcano. This happens because of the baking soda |
| - 6 Cups Flour | | | | and vinegar mixture. By mixing the two together you |
| - 2 Cups Salt | | | | produce a chemical reaction in which carbon dioxide |
| - 4 TBSP Oil | | | | gas is created - the same gas that bubbles in a real |
| - 2 Cups Water | | | | volcano! The gas bubbles build up in the bottle, forcing |
| • Plastic soda bottle | | | | the liquid "lava" mixture out of the bottle and |
| • Baking Sheet | | | | down the sides of your volcano. You will also notice |
| • Warm water | | | | that a type of crystal forms during the reaction. Baking |
| • Red food coloring | | | | Soda is a base and vinegar is an acid. When you |
| • 6 Drops Liquid dish detergent | | | | combine a base and an acid you will end up with |
| • 2 TBSP Baking soda | | | | carbon dioxide, water and a salt at the end of the |
| • Vinegar | | | | chemical reaction. The salt that is produced in this |
| Instructions: | | | | chemical reaction is called sodium acetate. This is not |
| 1. Make your salt dough by mixing the flour, salt, oil and | | | | our regular table salt. Do you know what acid and |
| water in a large bowl. Add a little more water if the | | | | base you need to make table salt? |
| dough seems to stiff. Knead the dough well. | | | | If your child is already learning about chemistry, this is a |
| 2. Stand the clean soda bottle in the middle of the | | | | great opportunity to talk about bases and acids in |
| baking sheet. Mold the salt dough around the bottle, | | | | general and have him or her figure out the formula for |
| making sure that you don't cover up mouth of the | | | | the reaction that just occurred. |
| bottle. Of course you also want to be careful not to | | | | |