PCT- Ted Talk: What is a calorie?

A portion of our consumed energy goes towards physical activity each day. Make a list of all the daily activities you perform that you think would require this energy.

Explain what factors make our individual energy requirements so unique, and why you think this is the case.

Try doing a little research on calories. Look up the average amount in these five food items: an apple, a slice of bread, a chocolate chip cookie, a slice of cheese and a soft drink. Compare them with one another. Which one is the most energy-rich, and which one has the least energy?