A sweet summer activity! There are a bunch of different ways to do this (just google/pinterest “chalk ice” or “chalk paint”). This is our version.
I LOVE the colors of our chalk so I decided to use that instead of food coloring or liquid watercolors. I grated chalk and put it in muffin tins. You could stop there and just add water, but I wanted to add another sensory and science element to this, so I scooped a heaping tablespoon of baking soda into each. Then I topped off with water and froze them.
The boys were really thrown for a loop! “It’s COLD.” Haha yup, it’s frozen. Once they got over the initial shock, it was game on. They painted with brushes and picked them up and drew with them. As they melted, the colors ran into rivers and mixed to create new colors.