Pencil By way of a Bag of Water Experiment: How-To & Worksheet
If you’re educating a lesson about polymers or want a fast and environment friendly experiment for a day within the classroom, this experiment and enjoyable exercise is a fan favourite. I actually love this easy “pencil by means of a bag of water” experiment. The setup for the experiment takes minutes and also you solely want a few gadgets that you just probably have already got in your classroom. The children get so enthusiastic about it too!
Video: Pencil By way of a Bag of Water Experiment
This video reveals straightforward step-by-step directions to comply with alongside through the experiment.
Supplies Wanted
- Sharpened pencils
- Plastic ziplock luggage
- Water
Step-by-Step Directions
Comply with these instructions to finish your individual “pencil by means of a bag of water” experiment:
- If in case you have a sink in your classroom, you’ll be able to rapidly set this up whereas college students are eagerly watching. I fill a quart- or gallon-sized plastic bag with water. Be sure it’s securely closed. You possibly can use tape, however I simplify issues and have by no means wanted it.
- Present the scholars your container or handful of sharpened pencils. They usually squeal with pleasure once they hear you’ll strive poking them by means of the bag. Ask them to foretell what they suppose will occur. Give them time to make a prediction earlier than you poke a pencil by means of.
- I wish to name one scholar as much as poke the primary one by means of.
Science Behind the Pencil By way of a Bag of Water Experiment
The pencil poke experiment is the right option to present how polymers work. Polymers have lengthy versatile chains of molecules. When a pointy pencil is poked by means of the baggie, the pencil slides between the chain of molecules that make up the polymer. A seal is shaped across the pencil by the molecule chains, so the water received’t get out. You possibly can all the time ask college students what is going to occur while you pull the pencil out. Simply be prepared with a bucket beneath!
And don’t overlook to obtain your free experiment directions and worksheet for college kids by filling out the shape on this web page!
