Rocks and The Rock Cycle Three Types of
- Slides: 15
Rocks and The Rock Cycle
Three Types of Rocks • Igneous • Sedimentary • Metamorphic
Igneous Rocks Formed when molted rock (lava or magma) cools and hardens Two types of Igneous Rocks Intrusive : cooled slowly beneath the surface, contains large crystals Extrusive: cooled rapidly on the surface, contains small crystals
Intrusive ? Extrusive
Sedimentary Rocks 1 st the rocks are weathered and eroded by wind and water (This means the rock is broken down into little particles called sediment. The sediment is then carried away by wind and water. )
Sedimentary Rocks 2 nd the sediment is deposited in layers (This means the sediment is dropped. Over time this forms layers of different sediment. )
Sedimentary Rocks 3 rd the layers are compacted and cemented together forming sedimentary rock. (This means the sediment is squeezed and glued together. )
Sedimentary Rocks
Metamorphic Rocks Formed when rocks undergo a structural change due to Heat and Pressure
The Rock Cycle
Quick Check 1. Metamorphic Rock is rock whose structure has changed. What factors change the rock? A. heat and pressure B. compaction and cementation C. cooling of magma
Quick Check 2. An active volcano on a Pacific island spews out lava. When it cools, what has been formed? A. metamorphic rock B. sedimentary rock C. igneous rock
Quick Check 3. What type of igneous rock is shown below? A. Intrusive B. Extrusive C. Sedimentary WHY? ? ?
Quick Check 4. What is the correct order of steps that form sedimentary rock? A. compaction & cementation, weathering & erosion, deposition B. weathering & erosion, deposition, compaction & cementation C. deposition, compaction & cementation, weather & erosion
Quick Check 5. Where does magma or lava come from? Molten or “melted” rock
- Can igneous rocks form metamorphic rocks
- Igneous rock to metamorphic rock
- Explain rock cycle
- How is intrusive igneous rock formed
- Naviance lasa
- Rock types and cycle quick check
- What are the three main types of
- Characteristics of igneous rocks
- Which type of rock
- Properties of a sedimentary rock
- A rock climber's shoe loosens a rock and her climbing buddy
- Chapter 3 standardized test practice answers
- Concept map of igneous rocks
- Concept map of rock types
- Rock cycle sedimentary
- Rock climbing rock climbing