Here are six simple ways to say that idea for a 7-year-old:
- Most of the cells in blood are red, so blood looks red.
- Because most blood cells are red, the blood appears red.
- Blood looks red since the majority of its cells are red.
- The blood is red because most of the cells inside it are red.
- Since most of the cells that float in blood are red, the blood has a red color.
- Most cells in your blood are red, which makes the blood look red.