atoms

What is a matter with a makeup that is always the same?

What’s is pure substance that contains only one atom?

What is the building block of matter?

What is a substance that contains atoms of or more different elements chemically bonded together?

What is mixture that looks the same?

What is mixture that looks different throughout?

what kind of mixture is a carbonated soft drink?

What kind of mixture is paint?

What kind of mixture Is Air w smog?

What kind of mixture is beach sand?