Real-world examples of the rock cycle in nature

📚 Quick Study Guide

• 🔥 Magma & Lava: Molten rock either beneath (magma) or above (lava) the Earth's surface.
• 🌋 Igneous Rocks: Formed from the cooling and solidification of magma or lava. Examples: Granite (intrusive), Basalt (extrusive).
• 🌧️ Weathering & Erosion: Breakdown of rocks at the Earth's surface through mechanical and chemical processes.
• ⏳ Sediments: Accumulation of broken-down rock fragments, mineral grains, and organic matter.
• 🧱 Sedimentary Rocks: Formed from the compaction and cementation of sediments. Examples: Sandstone, Limestone.
• 🌡️ Metamorphism: Transformation of existing rocks (igneous, sedimentary, or metamorphic) through heat, pressure, or chemical reactions.
• 💎 Metamorphic Rocks: Rocks altered by metamorphism. Examples: Marble (from limestone), Gneiss (from granite).
• 🔄 The Rock Cycle: An ongoing process where rocks are constantly being formed, broken down, and reformed.

🧪 Practice Quiz

1. Which of the following is an example of an extrusive igneous rock?
   1. Granite
   2. Marble
   3. Basalt
   4. Gneiss
2. What process forms sedimentary rocks?
   1. Cooling of magma
   2. Metamorphism
   3. Compaction and cementation of sediments
   4. Intense heat and pressure
3. Marble is formed from the metamorphism of which rock?
   1. Sandstone
   2. Limestone
   3. Granite
   4. Basalt
4. Weathering and erosion primarily contribute to the formation of:
   1. Igneous rocks
   2. Sediments
   3. Metamorphic rocks
   4. Magma
5. Which of the following is an example of an intrusive igneous rock?
   1. Basalt
   2. Obsidian
   3. Granite
   4. Pumice
6. Gneiss is formed from the metamorphism of which rock?
   1. Limestone
   2. Sandstone
   3. Granite
   4. Shale
7. What drives the rock cycle?
   1. Solar energy
   2. Wind energy
   3. Earth's internal heat and external processes
   4. Tidal forces