Yesterday, we put on our science hats and continued our inquiry around water. We had already investigating the sinking and floating of heavy and light objects. So, we turned our attention to liquids and asked, “Are some liquids heavier or lighter than others? Are all liquids the same?”

We started out by examining a variety of liquids. We looked at water, vegetable oil, dish soap, corn syrup, and rubbing alcohol and made several observations about colour and movement. We also made predictions about which liquid is the heaviest and which is the lightest.

Then it was time to pour each liquid into a jar and make observations along the way.

 

 

 

 

 

 

With the help of a little food colouring we were able to see all of the layers of each liquid and were surprised to find that the syrup was the heaviest and the alcohol was the lightest! We created a second jar and shook it up just to see what would happen. We did notice that the liquids seemed to mix together but this morning we discovered that the oil had separated from the other liquids.  We’ll continue to talk about this idea today as we experiment with water, oil, and alka seltzer!