Glow Stick Experiment

by Amy on May 19, 2010

Glow Stick Experiment for Kids

I found a few glow sticks rattling around one of our kitchen drawers – leftover from party goody bags, maybe? Anyway, I spent a little time surfing the ‘net for interesting things to do with glow sticks and came across a fun (and simple!) demonstration at Steve Spangler Science.

The basic idea of the experiment is to see how warm water and ice water affect the brightness of a glow stick. We kept one at room temperature for comparison, too. I wasn’t sure how dramatic the results would be, but it turned out to be really neat!

glow stick experiment for kids

I gave the girls a simple recording sheet to fill in during our glow stick experiment. We used our big scientific words to make a hypothesis, draw and write observations, and report the results.

glow stick experiment for kids

For more experiment specifics, as well as an explanation of the scientific processes at work, check out the full details at Steve Spangler Science.

Happy experimenting!


Kara May 19, 2010 at 3:35 pm

Okay, that is cool! I wouldn’t have guessed there would be such a dramatic difference either -neat!

Hope you’re having a great week!

Natalie May 19, 2010 at 6:19 pm

This IS a cool experiment. I have to remember it when we have a few glow sticks after Independence day.

Karin Katherine May 23, 2010 at 5:04 pm

LOVE THIS! How cool! I will be on the look out for glow sticks my next trip to the dollar store. I love doing science experiments with my kids. I’m so glad to hear you are teaching the Scientific Method. I attended a workshop that said that is the BEST thing we can do during the elementary science years.

Michie June 5, 2010 at 11:10 am

I just picked up some of those glow sticks at Target the other day with this experiment in mind. I was wondering where you got that worksheet? Did you make it yourself?

I am thinking that I might also do this project with my daughter at the same time, and thought your kids might like it too:

Eddie August 2, 2012 at 4:20 am

This is great! We do a lot of things with glow sticks but we haven’t done this yet – we’ll have to give it a try the next time the power goes out. Thanks for sharing!

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