Ever wonder how the water draining down your sink gets clean again? Think about it: The water you use to clean your dishes is the same water that runs through the toilet. There is only one water pipe to the house, and that source provides water for the dishwasher, tub, sink, washing machine, toilet, fish tank, and water filter on the front of your fridge. And there’s only one drain from your house, too! How can you be sure what’s in the water you’re using?
This experiment will help you turn not only your coffee back into clear water, but the swamp muck from the back yard as well. Let’s get started.
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Glow sticks have chemicals in them and sometimes glass. The should be handled with care – gloves and goggles – in order to protect your skin and eyes.
Aurora how does the stuff inside the glow stick dangerous.
I’ll have my team connect with you right away!
Hi. I recently joined and I have a child in grade 5 and one in grade 2. All of the experiments I have viewed so far say I don’t have access to these experiments?
Yes, I would leave it out completely. It’s only in there for pH reasons. 🙂
Aurora, I will be helping a group of kids do this project. I’m worried about the lime that I need to add. Can I just leave it out but tell them about it? would the experiment still be effective?
Thanks!
Sandbox sand is fine!
Do you use sandbox sand or is there something else I should be looking for?
No because we skip the last step (bleaching), as bleach and kids don’t mix. This is just for demonstration purposes. Feel free to check the water with measurement devices – for example, look at a sample under a microscope, use pH paper, etc.
Intresting, do you actually drink the water you filter?
Jasmin