Rocks are pieces of the earth. The earth is made of rock. If you dig into the ground, you will eventually hit rock. In many places, rocks stick out of the ground. Not all rocks look the same because they were made from different things in different ways.
Some rocks are hard, some are soft, some are shiny, some are dull, and some are rough.
These descriptions are called properties. Look carefully at your rock and decide what properties your rock has. Tell your partner, compare your rocks. We know that rocks look and feel different. They also have many different uses.