What is a synthetic material?

Science

Not natural, they have been made by humans

Which of the following is NOT a synthetic material?

What raw material is glass mostly made from?

Which properties of brick make it useful for building houses?  Choose 3.

Natural and has not been changed by humans

Which is the best definition of a raw material?

Which of the following is NOT a raw material that comes from the ground?

Raw materials can be found in the ground or...?

Which of the following properties make leather a useful material?  (Pick 3)