WONDER #2523: What is Concrete Made From?

Question 1 of 3

Which of these is NOT needed to make concrete?

1. Water
2. Cement
3. Iron ore
4. Aggregates

Question 2 of 3

Cement is a mixture of _________________________.

1. soapstone and concrete
2. limestone and clay
3. iron and carbon
4. sand and glass

Question 3 of 3

This Wonder was mostly about...

1. what concrete is made from and why it’s such a popular building material.
2. how people in ancient China invented concrete.
3. specific directions for making concrete.
4. why people should always build using concrete instead of steel.

Check your answers online at https://wonderopolis.org/wonder/What-is-Concrete-Made-From.