How to launch a water rocket

we have been learning about forming hypotheses to predict results of experiments we used water rockets to experiment and checked our results.

my favourite part was bloging this.

How to launch a water rocket

Equipment

• 2L plastic bottle
• Air pump
• Aquapod rocket launcher
• String for pressure release
• Peg for stand
• Safety glasses
• Open fieldMethod
  1.  first fill the plastic bottle ⅓ full with water
  2. put on your safety glasses than get the air pump 
  3. And get the peg and get the rocket launcher than get a string 
  4. Go to an open field then sit up the equipment then put the water bottle in the rocket launcher 
  5. Put the peg up then push the  air pump down how many times you want but if you want it to go high push the air pump about 15 times.
  6. Launch it by pulling the string.