My 10 year old son, Ethan, and I had fun in the kitchen this morning making pies for Thanksgiving. It was a great way to learn about food science. We decided to make a Lemon Meringue Pie. First, we needed to look at the formula (recipe) and talk about all the ingredients that we needed. We uses several types of measurements - liquid measuring in ounces, solid measuring in measuring cups and spoons (next time we'll try using a recipe with weights), and counting of individual items (such as eggs). When mixed together the ingredients for the filling we talked about the chemical changes that were occurring in the pot as the ingredients bubbled together and thickened. As we whipped the egg whites we talked about physical change as the molecules captured the air and coated the air bubbles. It was a great way to reinforce what he is learning in his 5th grade class without it feeling like homework. The best part is you get to eat the results!
Looking for a few more experiments for physical and chemical changes? Here's a related blog post you might like at Owlcation.
Debbi graduated with a Culinary Arts Degree from Johnson & Wales University in Rhode Island.
Debbi - Proud mom of two beautiful boys who have benefited from some amazing STEM opportunities!