$\textit{What is a calorie?}$ $\text{A calorie is energy that helps us do our everyday activities.}$ $\text{Giải thích}$ $\text{We need calories or energy to do the things we do every day:}$ $\text{walking, riding a bike, and even sleeping}$ $\text{We get calories from the food we eat.}$ $\text{If we eat too many, we can get fat. If we don’t eat enough, we feel tired and weak.}$
