Knowledge: An interesting fact about dung beetles is that despite their small bodies, they can move objects much heavier that themselves. A healthy human has 12 to 20 grams of hemoglobin in every 100 mL of blood

Conversation:
I love the color Red! It is so bright and vibrant!
Oh, that's nice. It actually sits at the end of the spectrum of visible light.
What 2 colors can you mix together to make red?
I am not sure, but the red color of blood comes from the protein hemoglobin.
That's interesting. How much of hemoglobin do we have in our body?

Response: In every 100 mL of blood, A healthy human has a hemoglobin quantity ranging from 12 to 20 grams