Rocket Science Experiments For Kids

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Rocket science experiments for kids 1: Water Rockets

This is a simple roper rocket powered by air pressure and water. Here are some of the components to do it:

Bottles (rockets) that we use are the mouthpiece of the same dimensions as the plastic tubes.
Using the method of Australian Ian Clark using a cable clamp placed on the nozzle of the bottle, the sample is green

We will use 6 of these devices and attached in place using a tube adapter, as shown in the photo below this tube also has a string attached at the bottom that serves as a trigger. Pulling the trigger releases the bottle which has been given the shape of a rocket that flies to the heights.
At the other end of the tube is placed auto valve to allow air to enter and prevent their exit from the bottle.

Although the nozzle of the bottle fits in the tube when air is pumped preión this escapes due to high pressure before. To prevent this heat a little tube and forms a ledge that runs as a plug in the air, as can be seen in the photo below.

Before launching the rocket must understand that this much energy aduiqere potential and if handled carelessly can hurt people or children, so that precautions are recommended.


  • 1 piece of 3 meters of PVC pipe 1 / 2 inch.
  • 1 piece of PVC 1 1 / 2 inches
  • 2 PVC elbows at 90 degrees
  • Tudo 1 cap for the 1 / 2 “
  • 2 threaded connectors for tubing 1 / 2 “
  • 1 PVC cement
  • 1 package of cable ties.
  • 1 maguera press that is slightly larger than the pipe 1 / 2 “
  • 1 car tire valve
  • Drill
  • 1 inflator bikes

Rocket Science Experiments For Kids AS IS

As we see next, they must place the cable ties and it is put on the tube thickness. Then aseguranos the cable ties at the bottom with the press of hose.

At the bottom you can see that you are ready pitcher. Simply air is pumped with the bicycle pump, it pulls the rope that releases the fasteners and the rocket shoots.

Rocket science experiments for kids 2: The balloon rocket on a string

Recoil of a balloon with a small rocket shown on the line: pure fun!

The balloon on a string: A simple balloon rocket ...

The balloon on a string: A simple balloon rocket ...

The effect of recoil can be shown with a nice Lufballon. But instead of letting it fly wildly through the area, we have missed him a tour. A tightly stretched across the room, thin line makes it possible.

The recoil is not only a beautiful demonstration of the physical principle of “action equals reaction” (ie, drag force equal to), but also shows that air is not “nothing”. Has air, even if it seemingly contradicts our experience, very much a mass. By the release of “air mass” from a nozzle recoil is generated in the opposite direction, accelerating the rocket and flies away.

For this rocket science experiments for kids we will need:

  • a taut string (if possible, across the room, preferably with a slope)
  • a piece of drinking straw, which we have previously put on the line (not bent),
  • Adhesive film
  • a balloon
  • a piece of plastic tubes.

There are several ways to attach the balloon on Trinköhrchen. In the simplest case is blown onto the balloon and the balloon body with glued two strips of adhesive tape fixed on Trinkhalmstück. We have chosen a more expensive option: The balloon was inserted to a mouth piece a “jet” from a piece of plastic pipe. The nozzle has a diameter of approximately 17mm, it is important that it is snug enough on the balloon mouthpiece.

This nozzle has now been fixed with adhesive tape on the straw. This has the advantage that the matter is not so wobbly. In addition, the design also holds when the balloon is slowly emptied and reduced. During inflation of the balloon, there is already a lot of laughs, because you have to “twist” is a little bit to get to the mouth of the nozzle.

This attempt to make fun in the first place and to encourage children to gather their own experiences. How can the rocket be improved so that they come as far as possible? What slows down the rockets, what is the role of friction? How important it is that the cord is taut, and why? How big should the nozzle? To fly far, is it better to be particularly fast or continuously expel air until the balloon is empty? What is the role of air resistance when the balloon is inflated particularly plump?

Rocket science experiments for kids: For a child’s birthday can organize a competition: What is the best idea for fixing the balloon? Whose air balloon is the farthest?