Ready! Launching! 5..4..3..2..1.. BLAST OFF! Today was our first launch day for the water bottle rocket. We launched our rocket with no modifications and with just a plain bottle. The materials we used were a pump, a stand, launch protectors, and a string attached to a clamp. The pump was a bike pump used for pumping air into the rocket. The stand was a special bottle stand for which you attach to the cap side of your bottle. The launch protectors were used to prevent the bottle from flying to the side and instead fly straight up. Then the string attached to the clamp would be pulled to let the rocket fly. The science behind the bottle is that when we fill up water into the bottle it acts as a resistor for the air. When we begin to pump the air using the pump it creates a force in the upward direction. When the force is great enough it will project. Because of newtons law of force we know that force down is equal to the force up. This is why the rocket flies up at a certain speed and force.
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