Introductory Activity :

Open class with several pictures of igneous, metamorphic, and sedimentary rock formations. Identify each of them and tell them that today??s lesson will be a review of the rock types and the rock cycle.

Body :

Begin class with a review of igneous and metamorphic rocks.
- Igneous Rocks: Rock formed when molten material from volcanoes or the earth??s core cool and harden.
o Intrusive/Extrusive
o Basaltic/Granitic
- Metamorphic Rocks: Rock formed from sedimentary igneous or other metamorphic rock due to increase in heat or pressure.
o Foliated/Non Foliated.

Sedimentary Rock:
- Rock formed when sediments become pressed or cemented together or when sediments precipitate out of solution.
o Demonstration: Layer bread pieces then place a book on top and apply pressure. Show the students that the slices of bread blended to form a larger slice. Tell them that this is one way a sedimentary rock forms.
Ask: If these took a long time to form, which layer is the oldest? ??The one on the bottom.??
o Precipitation: Show students a cup of muddy water that has evaporated. Tell them that this is the second way sedimentary rocks form.

- Compaction: Pressure from upper layers pushes on lower layers. The smaller the particle the easier they stick together.
- Cementation: Larger sediments. Water with dissolved minerals such as calcite, hematite, and limonite. These minerals are deposited around the sediments.


- Types of Sedimentary Rock:
- Detrital/Clastic: Show examples of each.
- Conglomerate, Breccia, Sandstone, Shale
- Chemical: Show examples of each.
- Limestone, Rock Salt
- Organic: Show examples of each.
- Fossil rich limestone, (Coquina, Chalk) Coal.

Rock Cycle: Tell students that each rock can become any other kind of rock. This process is called the Rock Cycle. Tell them that they will now be playing a game to help them better understand the rock cycle.


Activity: Set up stations around the room for SEDIMENTARY, IGNEOUS, and METAMORPHIC. Include two additional stations for Magma/Lava and Sediments/Weathering and one station in the center with various examples of the three types of rock which the teacher will run.

Instructions:
1. Begin at any station and to move in groups. Draw 1 card.
2. Follow directions on card to next stop.
3. Go to center of game board and identify one rock from group that corresponds to the stop they are currently at.
4. Go back to stop and take a card.
5. Follow directions on the card and repeat.

Station cards are as follows:
At Igneous:
- weathering (Move to "Weathering")
- melting (Move to "Magma")
- heat and pressure (Move to "Metamorphic")

At Weathering:
- cementation (Move to "Sedimentary")
- melting (Move to "Magma")

At Sedimentary:
- weathering (Move to "Weathering")
- melting (Move to "Magma")
- heat and pressure (Move to "Metamorphic")

At Magma:
- cooling (Move to "Igneous")

At Igneous:
- weathering (Move to "Weathering")
- melting (Move to "Magma")
- heat and pressure (Move to "Metamorphic")

At Metamorphic:
- weathering (Move to "Weathering")
- melting (Move to "Magma")

Conclusion Activity :

Ask: Did anyone win the game? The anticipated answer is ??no?? ?V Tell the students that this is because the rock cycle never ends.

Vocabulary Words :

• Igneous, metamorphic, sedimentary
  
• Compaction, deposition,
  
• Melting and cooling
  
• magma, lava
  

Evaluation Activity :

Students will be evaluated through their interaction with the teacher at the central rock station.