These three demos allow students to experience applications of knowledge of the digestive, respiratory, and circulatory systems by doing very short activities on themselves. They also allow the opportunity to discuss the pros and cons of using humans as test subjects. It is very useful for students to get the idea that scientific experiments do not have to be very complicated.
Related Resources:
Teacher Demonstration: Liver Enzyme Action
Categories: Teacher Demonstration
This demonstration illustrates the importance of enzymes in the human body. Enzymes catalyze many important chemical reactions in the body. This demonstration is a visual example of how the enzyme... read more
Teacher Demo: Coke versus Diet Coke
Categories: Teacher Demonstration
This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks. read more
Teacher Demo/Student Activity: Iron in Cereal
Categories: Lab/Student Activity, Teacher Demonstration
Food labels often contain the word "fortified". This means that one or more ingredients have been added that are not normally found in that food item. The purpose is to increase the amount of that... read more