The self-inflating balloon, it's not really self inflating as such, it's inflating using a chemical reaction - it's all about gas pressure!
- A bottle (a small plastic bottle – we used a 50cl water bottle)
- A balloon
- Baking powder
- Vinegar
- A funnel
How to do the experiment:
STEP ONE
Prepare your balloon ready by putting 20ml of baking powder
into the balloon using the funnel.
STEP TWO
Using
the funnel pour in 100ml of white vinegar into a bottle.
STEP THREE
Carefully put the balloon on the next of the
bottle without allowing the baking powder to fall in.
Now you are ready for the fun part!
What do you think will happen to the balloon
when the baking powder drops into the bottle and hits the vinegar?
Lift the balloon up so to allow all the baking powder to fall into the vinegar and then wait and find out.
Lift the balloon up so to allow all the baking powder to fall into the vinegar and then wait and find out.
What happens?
This is experiment is good to show us how, in a volcano,
gas build up can cause enormous explosions!
The gas CO2
produced by the reaction between the baking powder and vinegar fills the
balloon, if it over fills your balloon will explode much like the gas in a
volcano.
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