What is the lightest material on Earth?

Monica, I think it is an ingredient in Chinese food. Why you never feel full , and want another meal after 20 minutes

But, what’s it used for?

What is it used for?

Monica, it's an amazing insulator

knowbrains, the question asked material. . and it could be that a gas inside a vacuum chamber is considered a material .. and that can go down to a few molecules per cubic metre.... but the answer list implies they mean a solid material ..it holds its atoms/molecules in the same relative positions,stuck together..

It's used for getting into the Guinness book of world records.

Aerogel is used for collecting gamma rays in space and on the earth.

Player #25874027, 😂

Player #25874027, 😆

Monica, Good question, who knows!

KaliboRobb, 😂😂😂😂