$\text{1. What is a calorie?}$
$\text{⇒ A calorie is energy that helps us do our everyday activities. }$
$\text{2. What happens when we have too many calories?}$
$\text{⇒ If we eat too many calories, we can get fat.}$
$\text{3. What is a healthy number of calories per day?}$
$\text{⇒ To stay healthy, you need between 1,600 and 2,500 calories.}$
$\text{4. Which activity uses a lot of calories?}$
$\text{⇒ Sports like riding a bike and running use a lot of calories. }$
$\text{5. Why do people listen to Dr. Law's advice?}$
$\text{⇒ People listen to his advice because he is a diet expert. }$