Showing posts with label corn starch. Show all posts
Showing posts with label corn starch. Show all posts

Tuesday, January 8, 2013

100 (Attempted) Ways to Entertain a Young Toddler, Day 88: Play Foam



Today's activity came from a blog called 
"Play, Create, and Explore." The mom mixed two boxes of corn starch and one container of shaving cream. It produced a large amount of "Fluffy Stuff" for her kids to play with. The made balls out of it for summer "snowballs," and, when her son threw them, they would explode in a powdery poof. 



That sounds like so much fun; doesn't it? With it being winter, it's not exactly prime time to play outside, and I didn't want clouds of fluffy stuff exploding in my home. So, I decided to do her project but made it much wetter (I used less cornstarch). The result was a fun foam that could be molded into towers. It reminded me of some of the images I've seen on Pinterest of "moon sand" (sand, corn starch, and water) and "cloud dough" (flour and baby oil). It also reminds me of the non-Newtonian fluid science activity we did a few months ago.

I didn't need to make much. This is how much shaving cream, corn starch, and food coloring I used. If you use food coloring, be careful because it could stain.

At first, Oliver wanted to eat it. I told him no, and he started to cry. Jo saw him crying and decided to join in. She also seemed to be afraid of our play foam. She wouldn't touch it.

After a few minutes (when I told them I was just going to clean it up), Oliver finally decided to start playing with the foam. He loved smashing it!

What's this?

Then, he discovered he could mold it:

It felt really soft and squishy. I kept squishing some, too.


Clean up wasn't too bad. I plopped the kids in the tub. After they were clean, we went back to the kitchen and cleaned the table. The foam had dried and left behind powder. I just had to wipe, and off it went! We didn't have a problem with staining on our table, but I probably should have tested it first to be safe.

I'm not sure what to grade this activity. Oliver loved it, but Joanna hated it. Later, during clean up, she accidentally got some on her finger and freaked out. That's not her personality at all! I'm going to give it a B- because it was really easy to set up and clean and made for nearly an hour of fun for Oliver. Even if your child hates it as much as Jo (unlikely), at least you didn't waste much time or resources. Our version was really good for an indoor activity, but I really look forward to this summer when we can make a big batch and form summer snowballs!

Wednesday, August 15, 2012

Pre-School Science: Non-Newtonian Fluid


The title sounds more complicated than it is.  Read on to learn how to keep your pre-schooler entertained with science.  You'll undoubtedly find yourself entertained as well.

It all started with our vinegar and baking soda experiment.  Oliver begged to do it over and over again. We did it three times. At one point, we actually ran out of baking soda and made a run to the store to play some more. Andrew came home and was over the moon about performing simple science with Oliver. He then announced he was going to make some "Non-Newtonian Fluid."

What.

Apparently, there are some fluids that don't behave the way we expect. You can easily make a liquid at home that doesn't splash when you tap its surface. Instead, it gets hard. Unlike "normal" liquids which flow more readily when you push on them (think about when you squeeze water out of a bottle), non-Newtonian fluids get harder when you push on them.

No, I'm not kidding.

Andrew whipped some up, and it kept Oliver happily entertained for over an hour.  When we finally took it away to clean the mess, he was in tears pleading to play some more.

Here's how to make your own non-Newtonian fluid: