5 Simple Rephrasings for a 5-Year-Old: Veins Carry Darker Red Blood Low in Oxygen

Here are five simple ways to say "Veins carry darker red blood that has less oxygen" for a 5-year-old:

• Veins carry darker red blood that has less oxygen.
• Veins bring blood back to the heart, and that blood is darker because it doesn’t have much oxygen.
• The blood in veins is darker red because it has used up its oxygen.
• Veins have darker red blood that is low on the oxygen our body used.
• Veins carry darker blood back to your heart after your body takes the oxygen from it.

Very simple steps to understand it:

1. Your lungs give oxygen to the blood.
2. The blood takes oxygen to your body so you can run and play.
3. After the body uses the oxygen, the blood comes back through the veins and looks darker.