Ch 3, 6th grade

Match it! Select the correct answer from the pull down...Good luck!

A substance is solid, created in a lab, inorganic, has a crystal structure, and a definite chemical composition. Is it a mineral?

The middle layer of Earth that flows is called the

Weather is the pattern of the atmosphere over a long period.

Which layer of the atmosphere contains weather?`

Which is NOT an Earth system?

The frozen portion of water on Earth's surface is called the

Which of these best describes the atmosphere's density?

The atmosphere is mostly made of