By Maria Flores

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Earth Science
Rocks

• By Maria Flores

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Fourth grade Earth Science Standard
4. The properties of rocks and minerals reflect
the processes that formed them. As a basis for
understanding this concept a. Students know
how to differentiate among igneous, sedimentary,
and metamorphic rocks by referring to their
properties and methods of formation (the rock
cycle).
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Igneous Rock
The Igneous rock form when magma of lava cool
and hardens.
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Types of Igneous Rocks
Basalt
Granite
Obsidian
Pumice
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Sedimentary Rocks

• Sedimentary Rocks are usually made of pieces
  of rock that have been squeezed and stuck
  together.

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Types of Sedimentary Rocks
Sandstone
Conglomerate
Limestone
Shale
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Metamorphic Rock

• Metamorphic rocks form when heat and pressure
  change rocks.

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Types Metamorphic Rocks
Mica Schist
Spotted Slate
Gneiss
Marble
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Rock Cycle
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Rocks in California
Metamorphic
Sedimentary
Central Valley
Igneous
Sierra Nevada
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References

• http//www.tulane.edu/sanelson/images/snevadabath
  .gif
• http//www.physical geography.net/fundamentals
• http//www.childrensmuseum.org/geomysteries

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The End