Here are five easy ways to say it so a 6-year-old will understand:
- Blood is like a delivery truck that brings air and food to your tiny body parts (cells) and takes away their trash.
- Imagine blood as a helper truck: it drives oxygen and food to each cell and then carries away the stuff they don’t need.
- Blood is a busy truck that drops off air and food to every little cell and picks up their garbage to throw away.
- Think of blood as a mail truck that delivers oxygen and nutrients to your cells and collects their waste to get rid of it.
- Blood works like a delivery van: it drops off air and snacks for the cells and then picks up the things the cells want to toss out.