Preschool STEM: Volcano
SCIENCE is back this week for Preschool STEM. Today’s volcano experiment is an attention grabber with kids and an excellent example of chemical reactions.
Volcanos: Activity & Conversation Starters
1. Fill a small plastic cup 2/3 full with water (we’re adding math!). Place the cup in a bowl or on a cookie tray to catch the eruption.
2. Add 2 tablespoons of baking soda.
3. Do you want your volcano to erupt with more foam? Add 1 teaspoon of dish soap.
4. Do you want colored lava? Add a small squirt of washable paint.
5. Stir.
6. Pour in vinegar and watch the reaction. What do you observe (see, hear, smell)?
7. Optional: Build a volcano with Legos or Duplos!
What’s Happening?
You’re watching a chemical reaction! When an acid (the vinegar) and a base (the baking soda) mix they form a gas called carbon dioxide.
Share a picture of your volcano experiment! Email us at ysstaff@eauclaire.lib.wi.us or share via Facebook.
