The good 'ol How To:
Grab a party balloon that is laying around.
Place some food coloring inside of it and fill the bad boy with water.
Tie knot at top and freeze.
Freeze overnight and remove balloon once frozen.
We started with the green marble and as you can see got more and more brave as the activity continued. With the green balloon, we did not shake it to mix up the colors, so the bottom section was a lot darker than the rest of the marble unlike with the blue and yellow; those were given a good shake once the knot was tied up top. I really wanted to bring the circular marble into effect but knew that I was going to limited to some tupperware and a freezer to make this happen. I decided that flour would be the best representation of snow, so that was added to the tupperware before adding the balloon to avoid a flat bottom.
These were a hit at school, and such a fun activity for Little Man and me to do together. This will definitely be a repeat activity!!