Minerals and Their Properties

What You'll Learn

Minerals are naturally occurring, inorganic solids with a crystalline structure and definite chemical composition. Minerals are identified by hardness, luster, color, streak, and cleavage.

Key Words

rock cycle
aquifer

Materials Needed

food coloring
clear container
rocks
sand

Safety First

Wash hands after handling materials.
Be careful with scissors — ask an adult for help if needed.

Steps

Step 1 — Read

Read and learn: Minerals are naturally occurring, inorganic solids with a crystalline structure and definite chemical composition. Minerals are identified by hardness, luster, color, streak, and cleavage.

Step 2 — Do

Measure and record your data in a table.

Step 3 — Observe

Note any unexpected results.

Step 4 — Record

Share your findings with the class or a partner.

Check Your Understanding

Question 1

1 of 3

What makes soil fertile?