You're viewing your - 1st of 3 free Items

View 2 more resources at no cost, and then subscribe for full access.

Join TeacherVision for just $6.99 USD a month and get instant access to all our great resources! Free 7-Day Trial

How to Blow Up a Balloon with a Glass Bottle

Inspire your pupils with this printable science activity about air temperature and the expansion of molecules. Pupils blow up a balloon using a glass bottle and water.
3 |
4 |
5 |

Science (4,978)

Activity (2,842)

Lesson (926)

Add New Folder
Available Folders
No Folder Available.


Blow up a balloon without using your mouth or your hands.


  • Glass bottle. One with a short neck works best.
  • A medium-sized balloon with the neck of the balloon cut off just below the opening
  • A large bowl
  • Water


  1. Fill the glass bottle with warm-to-hot water. Let it sit for about 3 minutes so the bottle warms up.
  2. Pour cold water into the bowl until it's about 3/4 full.
  3. Pour the warm water out of the bottle.
  4. Stretch the balloon over the top of the bottle.
  5. 5. Put the bottle into the bowl of water and watch what happens!

The balloon should inflate inside the bottle.

Why it happened:

As the air in the bottle cooled, it contracted and took up less space in the bottle. Air from outside the bottle rushed in to fill the space and inflated the balloon.

Join TeacherVision today

Membership starts at only $6.99/month, with full access to all our teaching resources.

Start my 7-day free trial
Start my 7-day free trial