Earth Layers and Plate Boundaries
What are tectonic plates?
Pieces of the earth's crust.
What is sediment?
Tiny pieces of broken up rock.
How is igneous rock formed?
You are looking at a rock column. Which layer is the youngest?
Danny and Sally find a dinosaur bone fossil. They believe it is the actual bone of the dinosaur. Do you agree or disagree? Why or why not?
Disagree; it is a rock in the exact size and shape of the bone.
What do Transform boundaries cause a lot of?
Earthquakes!
Sandstone, limestone, and shale.
How is metamorphic rock formed?
Heat and pressure are applied to an existing rock.
Look at the picture of two different sites of a canyon. Which layer is the same age as layer B?
Layer W
Look at the Geologic Time Scale. What period came first in the Mesozoic Era?
Triassic
List the layers of the Earth in order, starting with the outside layer.
Which part of the sedimentary rock cycle is when sediments are pressed together?
Compaction
How would I turn a sedimentary rock into a metamorphic rock?
Apply heat and pressure to the sedimentary rock.
What happened at G?
Plate tectonic shifting/earthquake
Igenous
What state of matter is each layer of the Earth?
(Crust, Mantle, Outer Core, Inner Core)
Solid, Solid/liquid, Liquid, Solid
Which type of rock fizzes with acid and WHY?
Limestone; it has calcite in it.
Heat and pressure are applied to an sedimentary rock until it melts. What kind of rock will it be now?
Igneous (it melted!)
List which environments create each type of sedimentary rock (sandstone, limestone, and shale).
sandstone= desert
limestone= ocean
shale= swamp
You pick up a rock that has lots of crystals in flat bands. Which type of rock is it most likely?
Metamorphic
List each type of plate boundary by name and show how it moves.
Convergent - toward each other
Divergent - away from each other
Transform - slide past each other
List all five steps of the sedimentary rock cycle and explain each step.
Weathering (breaking down of rock), Erosion (movement of sediment), Deposition (dropping of sediment), Compaction (pressing sediments together), Cementation (gluing together of sediment)
I will show you a rock. Explain how you could turn it into all three types of rock: igneous, sedimentary, and metamorphic.
(Answers will vary)
Look at the picture I show you of some rock layers. Draw a timeline on the board of what happened. Use all the letters there!
(I will give answer)
Describe how a dinosaur bone fossil is formed. Talk about each step.
Bone is buried by sediment. Sediment turns to stone. Bone dissolves, leaving a hole in the rock. The hole fills up with minerals, creating a rock in the exact size and shape of the bone that used to be there.