Types of Rocks, different types and how it's affect out environment

this is the pptx that shows different types of rocks.

1. The Rock Cycle: Earth's Recycling Process

2. Introduction to Rocks and the Rock Cycle There are three main types of rocks: 1. Igneous 2. Sedimentary 3. Metamorphic Rocks are constantly changing from one type to another This process is called the rock cycle The rock cycle shows how Earth is like a giant rock recycling machine What types of rocks have you seen or collected before?

3. Igneous Rocks: Born from Fire Formed when molten rock (magma) cools and hardens Two types: 1. Intrusive: cool slowly underground (e.g. granite) 2. Extrusive: cool quickly above ground (e.g. basalt) Often found near volcanoes Can you think of any famous volcanoes?

4. Sedimentary Rocks: Layers of History Made from particles of other rocks or remains of living things Form in layers over long periods of time Often contain fossils Examples: sandstone, limestone, coal What do you think we can learn from fossils in sedimentary rocks?

5. Metamorphic Rocks: Changed by Heat and Pressure Formed when other rocks are changed by heat and pressure Two main types: 1. Foliated: have layers (e.g. slate, schist) 2. Non-foliated: no layers (e.g. marble, quartzite) Can form deep underground or near volcanoes How do you think rocks might change under extreme heat and pressure?

6. The Rock Cycle in Action Rocks are constantly changing from one type to another Main processes in the rock cycle: 1. Melting 2. Cooling 3. Weathering and erosion 4. Heat and pressure The cycle has no beginning or end Can you describe how an igneous rock might become sedimentary?

7. Weathering and Erosion: Breaking Down Rocks Weathering breaks rocks into smaller pieces Erosion moves these pieces to new locations Can be caused by: Water, Wind, Ice Plants and animals What examples of weathering or erosion have you seen in your area?

8. Rock Formation Takes Time Rock changes happen very slowly Can take thousands or millions of years Example: Grand Canyon rock layers formed over millions of years How old do you think the oldest rocks on Earth might be?

9. Rocks Tell Earth's Story Rocks provide clues about Earth's past Can show: Ancient environments Past climate changes Evolution of life Geologists study rocks to learn about Earth's history What do you think we could learn from a rock containing dinosaur fossils?

10. The Importance of Rocks Rocks and minerals are used in many ways: Building materials Jewelry Electronics Fuel (coal, oil) Studying rocks helps us: Understand Earth's history Find important resources Predict natural disasters What are some ways you use rocks or minerals in your daily life?