National Geographic Earth Science 3rd Grade Chapter 4

A part of soil made of bits of decayed plants and animals.

Solid nonliving materials found in nature.

What mineral is always blue?

True or False: Hematite can be different colors.

Which is better for telling minerals apart?

What is a small piece that makes up rock or soil?

A layer of loose materials on Earth' surface that is made up of bits of rocks, humus, air & H2O

Which is/are an example of texture?

Which is not a type of mineral?

Which is NOT a size of rock?

What is the hardest mineral on Earth?

Where does humus mainly settle?