It is like a blanket of air that surrounds the earth.

It is the mineral that is used to create wooden pencils.

Why is earth called a terrestrial planet?

How many percent of water comprises the Earth?

Which subsystem comprises all of the waters of the earth?

Which of the subsystems is composed of a mixture of gases that surrounds the earth?

It is the solid part of the earth that consists the entire planet from the center of the core to the outer crust.

The quartz with a pinkish color is called:

Which of the following is not a characteristic of Minerals?

What do you call the tendency for a mineral to break along flat surface?

Which of the following is the mineral found in table salt?

It is a ranking of mineral from softest to hardest.

It is the ability of minerals to be cut by a knife

A manner by which minerals reflects light