Here’s an awesome and extremely easy Kid’s Science Experiment – the Leek-Proof Plastic Bag!!
I’m sure you have everything you need at home –
- Plastic Zip Lock Bags
- Sharp Pencils
- Water
Instructions –
Simply fill and seal your plastic Zip lock bags with water and head outside or over a sink or bath (trust me when this experiment is complete the kids will want to see the bag get empty again lol). Have the children gently stab each pencil through the bag until it pierces both sides…and surprise, surprise, NO water leaks out!
This is such a neat activity! Our kids spent ages trying to see who could insert the highest number of pencils into the bag.
Then the inevitable happened…they wanted to pull them all out and watch the water filter out through all the holes!
We found this great idea on the Steve Spangler Science Website – he goes into great detail about how and why this works…I highly recommend checking his post here…you might also find some other cool experiments while you’re there :).
Louise x
If you liked this activity, then you may also like our:
Wonderful experiment. I’ll play it with my teenagers and challenge them to explain how that works.
what is the princple
I liked the post for my Grand kids!
Next things to find….hope to see more
Hi I am home schooling my 10 yr old daughter this yr and I am having a hard time finding fun material for her. If anyone has any ideas for her grade leval I would be greatful. Thx!
hey you can try to let her build a solar cooker and explain how it works. its really easy.
What a creative idea! This would be such fun on a camping trip! The kids would just love it!
I’m going to link to this on my website http://www.theeducationaltourist.com where I write about traveling with the kids and learning along the way. I would love a shout out from you!
Thanks for sharing this clever idea.
Natalie, The Educational Tourist
That was soooo much fun..I did 15 pencils..I loved it!
Okay, seriously, this could be used as a first aid lesson. The first thing you do with a puncture wound is LEAVE THE OBJECT IN. Why? Because you don’t know what it’s holding together inside. As long as the “pencil” is in the “bag” the bag is okay.
This is genius.
Great idea!
I would love to use this as a lesson plain but I need 3 things the kids can learn about safety
from it
I like the ideas and would like this web in my daycare.
Regards .
Salma
Fun and very exciting it had to take a curious person to think of something like this
This looks like it b is exciting we will do this Foa science project! Thanks!
This is a great science steam fair project
This is a demonstration, not an experiment. To be a science fair experiment, you would need to have a dependent and independent variable. For example, you could try putting the pencils into a bag of water that has some air in it and then putting pencils in a bag of water with no air in it to see if there is a different outcome.