Demonstrate the practical applications of rocks by providing examples and explaining how their unique properties make them suitable for each purpose.

Sure, here are some practical applications of rocks:

1. Building Material: One of the most common uses of rocks is in construction. For example, granite, a hard and durable rock, is widely used for countertops, tiles, and monuments. Its resistance to weathering and aesthetic appeal make it suitable for these purposes.

2. Energy Production: Coal, a sedimentary rock, has been used for centuries as a fuel source. It is burned in power plants to produce electricity. Its high carbon content makes it an efficient source of energy.

3. Jewelry: Some rocks such as diamonds, rubies, and emeralds are used in jewelry. These gemstones are valued for their hardness, luster, and rarity.

4. Road Construction: Rocks like basalt and limestone are crushed into small pieces and used in road construction. These rocks are chosen for their hardness and durability.

5. Agriculture: Certain types of rocks, like limestone, are used in agriculture to neutralize acidic soils. This is because limestone is a natural source of calcium carbonate, a compound that can balance the pH of the soil.

6. Tools and Equipment: Flint, a type of sedimentary rock, was used by prehistoric humans to make tools and weapons. Its ability to be chipped into sharp edges made it ideal for these purposes.

7. Cosmetics: Some rocks like talc are used in cosmetics. Talc is the softest known mineral and is used in a variety of cosmetic products, including makeup and baby powder.

These are just a few examples of how the unique properties of different types of rocks make them suitable for various practical applications.