How rockets fly?

When a rocket is ready to go it pushes the air down and the air pushes the rocket up.

Let's catch the blast off

Astronaut on earth  is trying to catch the spaceship.

Me and my spaceship

We are getting ready to go.

 

We also made a rocket with vinegar and soda.

[youtube=http://www.youtube.com/watch?v=PXhuTrDr0vQ]

 

Did you know…

To make the rocket push air down you have to count down just like that

5 5 5 4 4 4 3 3 3 2 2 2 1 1 1 blast of.