Science In Room 8

Who would have ever thought that a plastic bag, some water and a few bamboo skewers would have kids enjoying so much? Learn how to poke holes in a plastic bag filled with water without spilling a drop. Well, that’s the theory we were testing…and it’s wise to practice your liquid trick over the tray, just in case!


  • zip-up bag
  • water
  • bamboo skewers /sharpened pencils

We filled a zip-up bag about half-way with water and sealed it up. We held the bag high over a tray and the kids poked the sticks straight through the bag, from one side to the other.

We had to be sure that the stick didn’t travel through the bag. We didn’t want to have water leaks.

We kept adding sticks until we had enough. Before removing the sticks, we took a moment to talk about what we saw. When the sticks went into the bag, the bag seemed to magically seal itself around the sticks.

When we were done, we removed the sticks over a tray. So much fun! And so much water everywhere!

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