Earth's Layers
What is the thickest layer of the earth?
Mantle
Show me with your hands what a CONVERGENT boundary looks like and tell me what two landforms it can create.
Mountains and Trenches
What are the 3 types of rocks and how are they classified?
Igneous, metamorphic, sedimentary
They are classified based on how they form.
What is weathering?
The breaking down of rocks into sediments
In what rock can fossils be found?
Sedimentary rock
What layer of the earth is completely liquid?
Show me with your hands what a DIVERGENT boundary looks like and tell me what three landforms it can create.
Mid ocean ridges, volcanoes, new crust
How does a sedimentary rock form?
WED and CCC
What is erosion?
The movement of sediments
Why can fossils only be found in sedimentary rocks?
Because they form in layers after sediments get deposited over time.
What layer of the earth is made out of rocky material?
Crust
Show me with your hands what a TRANSFORM boundary looks like and tell me what it can create.
Earthquakes
How does a metamorphic rock form?
Intense heat and pressure
What is deposition?
The gathering or deposit of sediments
How can you tell what fossil is the OLDEST in a rock?
It is in the layer closest to the bottom
Why is the outer core completely liquid but the inner core is NOT?
Because the pressure of gravity pulling all of the other layers own on top of the inner core causes it's materials to compress into a solid.
What are the lines or cracks in between tectonic plates called?
Fault lines
How does an igneous rock form?
When lava or magma cools down and solidifies.
Name 3 ways that a rock can be weathered.
Possible answers: wind, water, ice, roots, chemicals, animals
What information can fossils tell us about the past?
Plants and animals that lived in a place.
How organisms changed over time.
What areas used to be like.
What is the order of Earth's layers from the outer most layer to the inner most layer?
Crust
Mantle
Outer Core
Inner Core
Explain what continental drift theory is.
The theory that plate tectonics and boundaries have caused the continents to drift apart over time.
Draw and label a model of the rock cycle on the board. You must use the following terms:
Igneous
Metamorphic
Sedimentary
WED and CCC
Melting and Cooling
Heat and Pressure
Ms. Doell will check**
Draw a picture on the board that would depict weathering, erosion, and deposition.
**Ms. Doell will check
How do fossils prove that the continental drift theory is real?