Summer Science #2

At the end of last summer both F and I felt like we'd frittered our summer away. We did lots of fun camps, but somehow never got around to doing all the fun excursions, experiments, and exciting things we thought we'd get squeezed in to our short three month break. This year I MADE A PLAN (who's laughing at the freaky planner?). We've got a summer bucket list and F and pal Emma both asked if we could do some experiments. I browsed the web and some of my old camp/school planning workbooks. I knew I'd get hung up trying to get all over town for supplies, so I took my list of projects and spent half an hour on amazon gathering all the supplies we'd need.

Last week we did the mentos/diet coke experiment. Kiddos learned that the CO2 in the soda interacts with the "dimples, like on a golf ball" that are found on mentos, causing the "explosion." We compared A&W root beer and Diet Coke and determined they're both fun to blow up.

This week we're learning about fluorescence and the light spectrum. We talked about infrared light and ultraviolet light and the light we can see and the light we can't see. We didn't get much deeper than that, but we sure had a good time with glow water.

We grew some water beads, a control group in plain water and our test group in glow water.

For the glow water recipe, and a whole list of other fun recipes, click here

First we made a sign with a yellow highlighter and a yellow marker. We talked about how the highlighter glows or, fluoresces, in the black light but the marker just looks black because it's not reflecting the yellow we normally see in the visible spectrum. our beads, using regular water in the while bowls and glow water in the blue bowls. Then we made our glow beads using regular water and plain water. The kids wrote their hypothesis on which ones might glow under the glow light.

 It took a couple hours for our beads to soak up all the water, and then we headed to the basement!

 They had a great time trying to figure out what color the beads were in regular vs. black light. We turned on the lights to check it out. Same handful of beads, both times.

 I have a feeling there might be drips of glow water all over the basement now. The kids splashed around for a while, I'm thinking we should save the water and make some glowing Ooblek next.