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Cornell Notes
Topic:Unit 2: Earth’s Layers
Name: ___________________________________
Essential Question: Describe characteristics of Earth.
Class: _________________ Period: ________
Date: ____________________________
Questions/Main Ideas:
Notes:
How much water covers Earth’s
Surface?
What gases make up Earth’s
atmosphere?
What makes Earth different than
any other planet in our solar
system?
How old is Earth?
What shape is the Earth?
Not a sphere; an __________ (circumference is greater at the
equator than at the poles.
Average circumference ______ km
Have scientists physically
explored Earth’s interior?
How do scientists know the layers
of the Earth?
What are the compositional
zones?
1. _______ – solid, outermost layer of the Earth; rock
a. _______ crust – crust under ocean
b. _________ crust – crust under continents
2. __________ – 2/3 of Earth’s mass, magma is formed
3. ______ – center of the Earth, made of ________________
What are the structural zones?
1. ___________________ – crust and upper mantle (tectonic plates)
2. _____________________ – plastic part of mantle plates move on
3. ______________________ – majority of the mantle
4. _____________________ – liquid iron core probably the source of
Earth’s magnetosphere (North and South Poles)
5. ____________________ – solid center of Earth
Summary:
What is gravity?
What is Isaac Newton’s
Law of Gravitation?
What effect does mass
have on gravitational
force?
What effect does distance
have on gravitational
force?
What’s the difference
between weight and
mass?
Weight –
Mass –
Summary: