How do you explain how bulbs store food to kindergarteners?

Bulbs are like little packages that plants use to store food for when they start to grow. Inside the bulb, there’s a special part that holds energy, kind of like how we keep snacks for later. When the weather gets nice, the bulb uses that stored energy to grow into a beautiful flower or plant! So, bulbs are like nature’s way of saving food for a rainy day.