WONDER #1840: What Are You Made of?
Question 1 of 3
The majority of the human body (57-65%) is made up of what substance?
Question 2 of 3
Approximately 99% of the human body consists of how many elements?
Question 3 of 3
Most of the human body’s mass comes from which element?
Check your answers online at https://www.wonderopolis.org/wonder/what-are-you-made-of.