Florida Standards Correlation:
SC.2.N.1.1- Raise questions about the natural world, investigate them in teams through free exploration and systematic observations, and generate appropriate explanations based on those explorations.
SC.2.N.1.2- Compare the observations made by different groups using the same tools.
SC.2.P.8.1- Observe and measure objects in terms of their properties, including size, shape, color, temperature, weight, texture, sinking or floating in water, and attraction and repulsion of magnets.
SC.2.P.8.2- Identify objects and materials as solid, liquid, or gas.
SC.2.P.8.3- Recognize that solids have a definite shape and that liquids and gases take the shape of their container.
SC.2.P.9.1- Investigate that materials can be altered to change some of their properties, but not all materials respond the same way to any one alteration.
Students get very excited about this activity and disappointed if they don’t get the best results. We have tested this and all of the salts will eventually work, however, the rock salt works very quickly (10-15mins.). We have used the school strawberry and chocolate milk so we eliminated the vanilla and it came out pretty good. The “ice cream” tastes more like a slushy, but all of the students really understood that we caused a chemical change from a solution (mostly liquid) to a solid.
Here are some pictures of our strawberry batch: