My hypothesis will be that the rocket will create high water pressure and it'll launch up the sky, powered by the water in the rocket. As I estimated it'll fly up to 40-50 feet high.
Have you done this science experiment before?
Today our class launched a water rocket up in the sky! For our materials we have an aquapod which was the main tool, the appearance of the aquapod we had was a three-legged orange and black pod with a valve and a rubber seal. It also had a string which launches the bottle up. The rubber seal is designed to stop the water in the bottle from leaking out. We also had a single barrel foot pump for pumping in air pressure into the bottle to make the rocket fly higher.
First you have to fill 1/3rds of the bottle with water, putting the aquapod upside down and placing the valve inside the bottle. Next you have to pump using the single barrel pump connected to the aquapod, to create air pressure inside the bottle.
Now for the exciting part, make sure you stay about 3-5 metres away from the pod, pull the string, and the bottle will launch up in the sky! You'll see the water pressure makes the rocket launch up.
Here's some photos for our experiment:
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