This document discusses the uses of four different types of rocks: slate, granite, chalk, and marble. Slate is used for roofing tiles and billiard tables because it is hard, impermeable, and slips easily into thin sheets. Granite is used for steps, roads, buildings, and schools because it is hard and impermeable and doesn't wear away easily. Chalk is used for writing on blackboards because it is formed from sea creatures and wears away easily. Marble is used for floor and wall tiles and statues because it has attractive texture and color and can be cut and polished.

2. Uses of rocks:
Slate
• It is hard
• Impermeable
• Slips easily into thin sheets
• Used for making roofing tiles and billiard tables

3. Uses of rocks:
Granite
• Hard
• Impermeable
• Used to make steps, roads, buildings and schools
• It doesn’t wear away easily.

4. Uses of rocks:
Chalk
• Formed from the skeleton of tiny sea animals
• Wears away easily
• Used to make sticks to write with on blackboards.

5. Uses of rocks:
Marble
• Has attractive texture and colour.
• Can be cut and polished
• Makes floor and wall tiles
• Some statues are made from marble too.