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Plastic Bottle Toy Car

Generally speaking, we try to restrict the use of plastics but some plastic water bottles have been lying around in the house from before. I decided to use them to let my kids build a toy car and learn some basic concepts of physics along the way. Both of my children loved the idea and were willing to make their own plastic bottle toy car, so they could compete against each other. During the construction process, we talked about axles and wheel and how a basic plastic bottle toy car if filled with concepts of physics and engineering. It was fun to build the toy car and kids enjoyed playing and racing them around.

( Disclosure : Some of the links below are affiliate links, meaning, at no additional cost to you, I will earn a commission if you click through and make a purchase )

Materials for Plastic Bottle Toy Car

  • Empty plastic water bottle
  • Cardboard or 4 plastic bottle caps
  • Plastic Straws
  • wooden skewer
  • Hot Glue gun or clay
  • pom pom, pipe cleaners, googly eyes for decorating
Materials for the plastic bottle toy car

HOW TO MAKE A PLASTIC BOTTLE TOY CAR

Body of the Car

  • Drill two set of holes into opposite side of the bottle. One set near the neck of the bottle and one set near the end of the bottle.
  • Each set of hole has to be in parallel to each other.
  • These are the holes where the axles will go.
Make the body of the car from the plastic bottle

Axle of the Car

  • Take two straws and cut each one so that they are slightly longer than the width of the plastic bottle.
  • Pass each straw piece through the two set of holes all the way through on the other side.
  • Measure and cut the wooden skewers, so they are a little longer than the length of the straw
  • Slide each skewers through the straws. These are going to be the axle of your car.

Wheels of the Car

  • Cut four circular discs from the cardboard. They are going to be your car’s wheel.
  • The circular discs must be large enough to hit the floor when an axle is mounted in their center.
  • Poke holes in the center of each of the circular discs.
Assemble the wheels of the car

Assemble the Car

  • Install each of the four cardboard wheels center to the ends of the skewers.
  • Place a little hot glue or clay where the skewer and the wheel meet to get the right snug fit when putting the skewer in the wheel.
  • Roll the car to ensure the wheels are able to move freely.
  • Decorate your car with pom pom, google eyes, pipe cleaners.
  • You are now ready to roll.
Plastic bottle toy cars ready to race

HOW TO MAKE A TOY CAR OUT OF RECYCLED MATERIALS

The Science Behind A TOY CAR THAT MOVES

Making a toy car gives you the chance to understand one of the six basic simple machines – the wheel and the axle. The wheel is the large rounded part and the axle is the smaller rounded rod. The wheel and axle is a simple machine form that makes moving, pushing , or pulling objects over a distance easier. The axle is placed in the center of a wheel, set in place or able to rotate. The wheel rotates around the axle. Wheels and axles work by rotating the wheel around an axle to move objects horizontally.

TroubleShooting

On the first try, you may find your car isn’t working perfectly, especially if its axles aren’t parallel or the wheels wobble. If there is too much friction it can cause the wheels to get stuck. Test your car to ensure the wheels spin freely, and the car rolls easily when you give it a push. If not, you may need to make some adaptations to your design.

MORE WAYS TO MAKE A DIY TOY CAR

Try looking at the bottom of a toy car to discover how a toy car travels and you will find two axles and four wheels. May be you can even take it apart to have a closer look.

Can you modify your plastic bottle toy car to be propelled using a rubber band or a balloon.

I have been doing some science experiments with my kids lately, so please make sure to check them out here.

Please share this post if you found it useful in learning how to make the best use of recyclable materials to create toys and learn some engineering concepts.

how to make a toy car

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Comments

  1. Tierra says

    August 13, 2020 at 12:23 pm

    This looks like a LOT of fun! Definitely something nice to do on the side as we embark on virtual learning next week. Might be a fun “experiment” to destress and let the kid’s imagination go wild.

    Reply
    • My World Their Way says

      August 14, 2020 at 9:53 pm

      Thank you ! I am glad you liked it. Totally agree with you to have some fun experiments on hand for kids during the new virtual learning model.

      Reply
  2. Audrey says

    August 13, 2020 at 5:28 pm

    Such a cute idea!! Love that it also uses recycled items.

    Reply
    • My World Their Way says

      August 14, 2020 at 9:54 pm

      Thank you !

      Reply
  3. Jennifer Bradley says

    August 13, 2020 at 8:35 pm

    This plastic bottle car craft is so cute and clever! From a non-crafty mom, I think I could handle this!

    Reply
    • My World Their Way says

      August 14, 2020 at 9:55 pm

      Thank you ! It’s pretty easy to make. Please do give it a try. My kids had fun building their own cars and racing it around.

      Reply
  4. TheHappyMommie says

    August 13, 2020 at 11:48 pm

    Wow, this is such a cool idea! will have to try this 👍

    Reply
    • My World Their Way says

      August 14, 2020 at 9:56 pm

      Thank you. I hope you give it a try, it’s pretty simple to make.

      Reply

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