WONDER #2523: What is Concrete Made From?
Question 1 of 3
Which of these is NOT needed to make concrete?
- Iron ore
Question 2 of 3
Cement is a mixture of _________________________.
- soapstone and concrete
- limestone and clay
- iron and carbon
- sand and glass
Question 3 of 3
This Wonder was mostly about...
- what concrete is made from and why it’s such a popular building material.
- how people in ancient China invented concrete.
- specific directions for making concrete.
- why people should always build using concrete instead of steel.
Check your answers online at https://www.wonderopolis.org/wonder/What-is-Concrete-Made-From.