Teaching Tips When creating the ice-cream, be sure that the students keep the ice mixture moving as well as the cream. For very young students you may want to prepare the ice-cream mixture in advance. Science All Around Us Relate this activity to your community by organizing a tour of a local ice-cream factory. If there are none in your neighbourhood then you might look for another type of food manufacturer or even invite a food chemistry specialist into your classroom. Interconnections Experiment with baking powder and show how chemicals can be used not only in the preparation of food but also as key ingredients in recipes.
Corn bread is a simple food, easily prepared by students, that illustrates basic chemistry.
Students can watch the reaction between these ingredients take place. You can talk about how the chemical reaction creates tiny air bubbles in most cakes. Inuit people have tapped this phenomenon for centuries, making safe, clear drinking water from frozen salt water. You may want to use these concepts to introduce the Glorious Garbage .