Monday, July 12, 2010



July9_Fireworks

According to Anna, it was the best experiment ever. The experiment was liquid fireworks, and it’s brilliant in its simplicity. All you need is oil, water and food coloring. First Anna mixed some oil with red, yellow and blue food coloring and watched in amazement how food coloring was breaking into tiny globules inside the oil. I think, by the way, that experiment would be more interesting with lighter July9_Fireworks2 cooking oil, but we only had olive oil available. Then she poured oil into water and observed “the fireworks”. What I liked about this experiment is that Anna could do it mostly on her own. One mistake that we made, however, is that our first vase was too small, and the water very quickly became black. We moved to a bigger vase, but we didn’t restart experiment from scratch. Instead Anna got a huge kick mixing the water and oil and then watching them separate again. She kept saying that she is making lemonade and kept asking why she cannot make the oil “bubbles” stay inside of her “lemonade”. It was a great way to give some introduction to density and how certain things don’t mix well together, plus I was fascinated myself to see different colors shooting out of black oil.

For more science with young kids, visit Science Sunday at Adventures in Mommydom.

12 comments:

MaryAnne said...

What a great activity! We've done oil and we've done food coloring, but never the two together.

Cathy said...

Very cool!

Debbie said...

We've done milk, oil and food coloring. I think it was one of Selena's favorites as well.

An Almost Unschooling Mom said...
This comment has been removed by the author.
An Almost Unschooling Mom said...

This is one of my kids' favorites, too - or at least it was before the water rocket :)

Kim said...

This looks like fun!

Mom and Kiddo said...

Looks interesting. And simple, which I love.

Nicole {tired, need sleep} said...

This looks and sounds like such a neat experiment! Thanks for sharing it - it's definitely going on our "to-do" list!

Pathfinder Mom said...

I wonder if that works as well with natural food coloring. I need to remember to buy some of the standard stuff for experiments.

The girl who painted trees said...

Oh, I have to remember to try this. A thought about the coloring a state activity - if she likes stickers, she could just put a sticker in each State.

Eva said...

great activity, Im definitely going to try this one :)

Ticia said...

Oh man, I missed this while I was out of town. That is a super cool idea! I'm going to have to remember this to try later as a distract the kids idea.