Ever wonder how lava spreads? Use this glitter volcano to learn how it works!
To observe carbon dioxide escaping by mixing two ingredients.
To observe a chemical reaction.
Difficulty of Project: Low (Level 2)
Cost of Completing Project: $7
Approximate Time: Less than 10 minutes
Small 20 oz soda bottle (plastic)
Liquid dish soap
Food coloring (optional)
STEP 1: *Note: this demonstration really makes a mess! Do this in a tub, sink or outside! Place the soda bottle in a place where it is OK to make a mess.
STEP 2: Insert the funnel into the bottle.
STEP 3: Pour one cup of baking soda into the bottle.
STEP 4: Add one teaspoon of liquid dish soap.
STEP 5: Add the food coloring if desired and glitter.
STEP 6: Add the 1 cup of vinegar to the mixture.
STEP 7: The volcano should begin erupting in 1 minute.
When vinegar and baking soda mix together they create effervescence. The bubbles that are seen are actually carbon dioxide. The liquid soap and glitter (and food coloring) all are pushed up and out of the bottle. This is similar to how a volcano would spew out lava.
Would it erupt faster if the vinegar was hot?
2. Would the volcano erupt faster if there was no glitter?
3. Would adding an effervescent tablet like alka seltzer change the reaction?
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