How to make a bottle rocket car

Written by erin maurer
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Rockets are one of those simply fascinating things that capture the imagination of children everywhere. Parents and teachers can assist their children in safely experimenting with rocket power by helping them make a non-explosive rocket using a soda bottle. To take the experiment to the next level, try attaching the soda bottle rocket to a toy car for a rocket powered car, sure to zoom across the driveway. While these experiments are simple, they are best done outside under adult supervision.

Skill level:
Easy

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Things you need

  • 2 empty soda bottles (567gr. size)
  • 2 corks
  • 2 toy cars
  • Duct tape
  • Measuring spoons
  • Baking soda
  • Toilet paper
  • Vinegar
  • Lemon juice
  • Safety glasses

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Instructions

  1. 1

    Fit a cork into the mouths of both 591ml. soda bottles. If the cork does not fit snugly, wrap it in tape and try again.

  2. 2

    Attach the soda bottles to the toy cars using a strong, adhesive tape such as duct tape. Attach the bottles on the top of the cars so that the open ends point away from the cars. Give them a test roll to ensure the cars' wheels roll properly.

  3. 3

    Measure 1 tsp of baking soda and pour it into the centre of a square of toilet paper. Wrap the toilet paper around the pile of baking soda and twist to ensure the baking soda packet does not easily unravel. Make a second baking soda packet.

  4. 4

    Put on safety goggles before adding fuel to the bottle rockets. In one rocket, pour in 1 cup of lemon juice. In the other rocket, place the baking soda packet in the bottom of the rocket.

  5. 5

    Drop the remaining baking soda packing in the lemon juice rocket. Fill the second rocket ¾ of the way full with vinegar. Quickly place the corks in both bottles. Place the rocket cars on the ground and stand back; the rockets will launch quickly on their own as the fuel reacts with the baking soda. See which fuel sends its car farther.

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