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Do It
photo of bag on a stick grab
  • a few bamboo skewers
  • a plastic zipper bag
  • water, or other liquids
  1. Fill the zipper bag with water nearly to the top, and zipper it shut.
  2. Hold the bag over the sink, and slowly poke a skewer into the bag below the water line. Poke the skewer right through to the other side, still below the water line. Keep the skewer in place. The bag doesn't leak!
  3. How many skewers can you put into the bag without a leak? What happens if you skewer the bag above the water line?
what happened?
Try the experiment, tell us what happens and watch DFTV for your results! How many skewers did you poke into the bag without a leak?

  view results
whiz quiz
What invention was created to help keep colds from spreading in classrooms?

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