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?

1. salt
2. sugar
3. water
4. iron

Question 2 of 3

Approximately 99% of the human body consists of how many elements?

1. 2
2. 4
3. 6
4. 8

Question 3 of 3

Most of the human body’s mass comes from which element?

1. hydrogen
2. oxygen
3. nitrogen
4. phosphorus

Check your answers online at https://wonderopolis.org/wonder/what-are-you-made-of.