Fueling the body with energy, carbohydrates, protein, and fat are essential to good health. This set of test tubes provides a great visual comparison in grams of the carbohydrate, protein, and fat content of 10 common foods. Accompanying materials explain what each of these key nutrients is, why it is essential to maintain the body, and how to make healthy food choices. Set includes 10 test tubes; display rack; two-sided tent card; informative, reproducible handout; review questions; and carrying case.