Young learners take a look at what they eat in one day and compare it to how much physical activity they do on that same day. Point out that this is only a one-day glimpse at balancing the energy going in and what energy being used. They need to understand that balance over time is important; it's not just a one day thing. Calories are stored if not used immediately and thus an excess on one day can be burned off on another day. The thing to remember is that excess calories that don't get burned off can lead to weight gain in the long run.