Name: _________________________________ per: _____ Date: ________________ Assignment #: _____ 3.1 Notes: Geosphere What Makes Up Our Earth? I. The Dynamic Earth a. The Dynamic Earth has 4 Sections: i. Geosphere ii. Atmosphere iii. Hydrosphere iv. Biosphere II. The Geosphere a. ______________________________________________________________________________ ______________________________________________________________________________ b. Geosphere: Earth’s Layers i. ____________________________ 1. Less than 1% of mass of Earth a. Thinnest layer – 5 km thick beneath ocean b. 30km-35km thick beneath continents 2. Light materials came to top layer (less dense) ii. ____________________________ 1. Layer beneath the crust 2. Makes up _______ of Earth’s mass 3. Approximately 2,900 km thick 4. Made of rocks of medium density 5. Made of liquid, iron-rich minerals iii. ____________________________ 1. 2,550 km thick 2. Made of thick liquid, metallic minerals iv. ____________________________ 1. 1,228 km radius 2. Made of solid nickel and iron III. Geosphere: Earth’s Structure a. _____________________ = Outer layer made up of the crust and upper mantle. ______________________________________________________________________________
2
Embed
3.1 Notes: Geosphere - Weebly · 3.1 Notes: Geosphere What Makes Up Our Earth? I. ... The Dynamic Earth has 4 Sections: i. Geosphere ii. Atmosphere iii. Hydrosphere iv. Biosphere
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
I. The Dynamic Earth a. The Dynamic Earth has 4 Sections:
i. Geosphere ii. Atmosphere
iii. Hydrosphere iv. Biosphere
II. The Geosphere a. ______________________________________________________________________________
______________________________________________________________________________ b. Geosphere: Earth’s Layers
i. ____________________________
1. Less than 1% of mass of Earth a. Thinnest layer – 5 km thick beneath ocean b. 30km-35km thick beneath continents
2. Light materials came to top layer (less dense) ii. ____________________________
1. Layer beneath the crust 2. Makes up _______ of Earth’s mass 3. Approximately 2,900 km thick 4. Made of rocks of medium density 5. Made of liquid, iron-rich minerals
iii. ____________________________ 1. 2,550 km thick 2. Made of thick liquid, metallic minerals
iv. ____________________________ 1. 1,228 km radius 2. Made of solid nickel and iron
III. Geosphere: Earth’s Structure a. _____________________ = Outer layer made up of the crust and upper mantle.
b. _____________________ = ______________________________________________________
a pliable, solid layer in the mantle i. Made of a rock that flows very slowly, which allows tectonic plates to move on top of it
c. Plate tectonics i. Tectonic plates glide across the asthenosphere, similar to how a chunk of ice drifts across
a pond ii. The continents are located on the tectonic plates & slowly move around with them
d. Major Plates i. There are _______ major plates: Pacific, North American, South American, African,
Eurasian, Antarctic
IV. Plate Tectonics
a. Plates move ___________________________________________________________________ ______________________________________________________________________________
b. When two tectonic plates meet, they can form ________________________________________ __________________________________________________________________, and more!
V. Earthquakes a. A ______________________ = a break in Earth’s crust where blocks of crust slide relative to
each other. b. An ______________________ occurs when there is an abrupt movement along a fault, such as
underground rock breaks c. The ______________________ is used by scientists to measure the energy released by an