Milk Carton Boat

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Sail the Seas

Turn a leftover milk carton into a boat. Here’s an easy and fun way to give new life to an empty milk carton.

You need:

  • 1 half gallon milk carton
  • 1 drinking straw
  • White glue
  • A small amount of air-dry clay
  • 1 piece of stiff paper (magazine covers work well)
  • 1 piece of printer or writing paper
  • Scissors
  • Duct tape (optional)
Milk Carton Boat
Milk Carton Boat

Here’s what to do:

1. Lay the milk carton flat, with the spout facing down. You’ll notice that it looks like the shape of a boat, with a bow and a stern.

2. Using a pair of scissors, cut the carton in half lengthwise. Keep the top half. Now you have a boat.

Milk carton boat instuctions

Optional: If you want to decorate your boat, you can cover it with duct tape.

3. Place the boat on its hull (that’s boat-speak for “bottom”). In the middle of the boat’s floor, squeeze out a quarter-size circle of white glue.

Milk carton boat instuctions

4. Pinch off a small amount of clay and mold it into a circle that’s roughly the diameter and thickness of a bottle cap. Don’t worry if it’s smaller or bigger or not exactly a circle! Press it into the glue.

5. Take the straw and stick one end into the clay so that it stands up straight. This is your boat’s mast. Let it sit a few minutes so that the glue starts to dry.

Milk carton boat instuctions

6. Meanwhile, using a stiff piece of paper, cut out a right triangle. One leg of the triangle should be approximately 4 inches, give or take.

7. On that same right leg of the triangle, use the tip of the scissors to poke a small hole about ¾ inch from the top of the leg. Then poke another hole about ¾ inch from the bottom. Make sure the holes aren’t bigger than the straw, or your sail won’t stay up.

Milk carton boat instuctions

8. Starting with the bottom hole, put the sail on the straw.

Milk carton boat instuctions

9. Fill up your sink or tub with a few inches of water. If the  weather is nice, you can use a pool or even a lake.

While you are waiting for the sink or tub to fill, take a piece of printer paper and fold it into a fan.

Float your boat. Make it move by flapping the fan. How fast can you sail?

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