Download - TAKS Objective 5 The student will demonstrate an understanding of earth and space systems
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TAKS Objective 5
The student will demonstrate an understanding of earth and space systems.
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TEKS Objective: 8.12
The student knows that cycles exist in Earth systems. The student is expected to
A analyze and predict the sequence of
events in the lunar and rock cycles.
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Prior Knowledge
• TEKS 6.6 C – Students identify forces that shape the feature of the earth including uplifting, movement of water, and volcanic activity.
• TEKS 7.14 B – Student analyze effects of regional erosional deposition and weathering.
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Learning Objectives
The student will be able to predict the events in the rock cycle.
The student will be able to diagram and explain the rock cycle.
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All rocks are heavy.
True or False
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A heavy piece of rock?
Think again!
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All rocks are hard.
True or False
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False
• Chalk
• Pumice
• Talc
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Rocks never change.
True or False
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False
• Rocks are changed by processes such as:– Melting– Pressure– Heat– Weathering and Erosion
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Teacher Background
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Igneous rocks are formed when magma cools.
http://www.fi.edu/fellows/fellow1/oct98/create/igneous.htm
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Melting
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Sedimentary rocks are formed when layers of earth have been deposited in the bottoms of bodies of water. Over time these layers are pressed together forming sedimentary rocks.
http://www.fi.edu/fellows/fellow1/oct98/create/sediment.htm
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Weathering and Erosion
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Metamorphic rocks were once sedimentary or igneous rocks that have been placed under tons of pressure and heat.
http://www.fi.edu/fellows/fellow1/oct98/create/metamorph.htm
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Igneous
Sedimentary
Met
amorp
hic
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Rock Cycle Diagram
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ENGAGE
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A rock can be a thing of beauty.
Photos by
Sandra Woodruff
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•Explore Explore
Chocolate Rocks!
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Explain
• How did you simulate weathering and erosion?
• How are sedimentary rocks formed?
• How are metamorphic rocks formed?
• How are igneous rocks formed?
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Elaborate
Rock Cycle Pictures and Arrows
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EvaluateDraw Your Own Rock Cycle
Use the words below. The words may be used more than once.
Igneous Rock Melting Lithofication
Sedimentary Rock Magma Cementation
Metamorphic Rock Cooling Compaction
Heat and Pressure Pressure
Weathering & Erosion Sediments