Ice Breaker Experiment

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This project originally started out with a science experiment that I thought would be a little difficult for my kids to understand. Did  you know salt water does not freeze? The suggestion for the experiment was to freeze regular water in half of an ice cube tray and in the other half freeze salt water. After a couple of hours when you pull the ice out, you would see that the regular water melts and the ice water does not melt. So, I came up with this variation for the kids to play around with....


What You Need:

• Salt
• Water
• Little bowls or plates
• Mini toys or small objects
• Container - size depends on how big you want your block of ice to be
• Ice cubes
• Optional: random tools or kitchen gadgets

Directions:

Step 1: Make a large ice block in a large container (mine was not huge, just a storage container). i filled it with cold water and mini toys and/or objects (mini Lego men, pen top, crayon, a glow in the dark snake, money - some sink, some float, just stuff that is on hand!). I added lots of ice to speed up the process and then put it in the freezer. The ice helped keep the toys separated and at various levels and it froze in just over 1.5 hours. 

Step 2: I started out giving a small bowl with a piece of ice to each child. Then I gave them some sugar to sprinkle on the ice to see what happens

Step 3: Then I gave them some salt. Wit the salt the ice starts melting quickly. We talked about what they saw and made sure they all noticed the ice melting quickly.

Step 4: After experimenting, I pulled out the big block of ice that I created and put it on the table in front of them. They saw their toys and the money and got really concerned and wanted to get them out! So, I had them tell me what they could do to get them out.

They tried knives...

Then they decided that forks might be better. I had to give each of them a turn to chip away at it because they were getting a little scary. They really enjoyed this part a little too much!

I reminded them of the little ice cubes and then they asked for the salt.

They each got a turn to sprinkle (and they wanted to keep stabbing it with the forks, too.)

It was a slow process, but they had a lot of fun. Once it started melting, it really started shrinking.


Next time I am going to make a really huge block of ice or make multiple ones of the one above and let the kids at them in the backyard. The 20-30 minutes we spent on breaking up this ice block was not enough for them!

It was fun for all who watched and participated!

This is the underside once we were able to flip it over.

ENJOY!!

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