An Indestructible Sandwich Bag?
You Just Couldn't Resist!
There's some serious science behind why you just clicked!
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Next time you're making your packed lunch take an extra couple of minutes and have a go at this outstanding science experiment! All you'll need is an extra sandwich bag (this one won't be any use to you by the time you're done!) and a couple of spare pens!
What do I need:
- Sandwich bag
- Several pens or pencils (they don't have to be matching!)
How do I do it?Â
STEP2 - Put your first pen through your (water-filled) sandwich bag and out the other side. As long as you do this slowly and gently then you should have managed to stay dry!
STEP3 - Just to prove it wasn't a fluke and to make your experiment look extra cool put the rest of the pens and pencils you have through your bag. You shouldn't lose more than a couple of drops of water!
What's going on?
If you haven't started yet make sure to ask a child (or an adult!) what's going to happen when you stick the first pen through the bag? Almost everyone thinks that the bag is sure to leak!
- Is it just pens that this will work for? How about pencils? Scissors? Chopsticks?
- What difference does putting more or less water in the bag make?
- Does it matter if your sandwich bag is open or closed?
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You'll get your FREE copy of 'Don't Eat Your Slime', weekly 'Top Secret Science Experiment Printables' and occasional awesome offers. Happy experimenting! đ
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