Sugar Cube Race:
Supplies: Sugar cubes, water, spoon/stir stick, clear glasses, stopwatch
Directions:
Fill a glass with 2/3 c. water. Drop a sugar cube in it and time how long it takes to dissolve. Then, have the child come up with ways to make it dissolve faster.
My son tried stirring and heating the water. Then, he combined the two and stirred a cube in heated water. We timed each one and recorded the time on a chart.
Now, when the experiment was finished I just couldn't bring myself to throw out perfectly good sugar water! That would be a waste. So, I gave the kids some more sugar cubes and lemon juice. They made their own homemade lemonade. That was a big hit and we didn't waste anything!
My son was learning about solutions and mixtures so the lemonade fit right in. We are also going to churn our own butter. I have a churn so we do that every once in a while anyway, but it fit into this chapter so nicely that I decided it was time to make butter again!
Here are the kids making their lemonade...