Spark the Conversation

Spark Science: Carbon Dioxide Inflated Balloons

September 15, 2017
Posted By: TELUS Spark

Mixing in everyday household items like vinegar and baking soda creates a bubbly and foamy reaction, perfect for a mini science experiment at home! 

Materials

  • 150 mL of Vinegar
  • 1 TBSP of Baking Soda
  • Container or recycled bottle
  • Balloons
  • Measuring Cup
  • Measuring Spoon 
  • Funnel (optional) 

STEP 1:

Blow up the balloon to stretch it!

STEP 2:

Pour 150ml of vinegar into a bottle or jar 

STEP 3:

Prep 1 tablespoon of baking soda into balloon

Fun Tip: Use a sharpie to write a secret message on the balloon

*Try your best to keep the baking soda away from the vinegar

STEP 4:

Stretch the balloon and place on top of container or bottle

STEP 5:

RELEASE the baking soda into the vinegar solution and watch the bubbly reaction take place! 

What’s happening? 

This is an ACID-BASE reaction.

Vinegar = ACID (Acetic Acid)

Baking Soda = BASE (Sodium Bicarbonate)

Combining vinegar and baking soda causes a chemical reaction and produces water, a salt (sodium acetate), and carbon dioxide- which you can see from the inflated balloon filled with bubbles and foam! Those bubbles are capturing all of the releasing carbon dioxide! This is what makes the balloon expand rapidly!

Challenge:

Try using different amounts of baking soda and vinegar and bottles to see what happens!

Fun Tips:

Add food colouring for a rainbow explosion!