The Earths Layers Axis Plate Tectonics Earths Layers
- Slides: 35
The Earth’s Layers, Axis, Plate Tectonics
Earth’s Layers • The Earth is made of 3 layers- crust, mantle, and core • The circumference of the earth at the equator is 24, 901. 55 miles • The earth through the poles the circumference is a bit shorter - 24, 859. 82 miles • Equatorial bulge caused by Earth’s spin and sun/moon’s gravity
Layers of the Earth
Earth Stats • 93 million miles from sun • While we're hurtling through space at nearly 67, 000 mph, we're also spinning around in circles at over 1000 mph! • The Sun is a fusion nuclear reaction- it powers the whole system • The Earth’s magnetosphere protects us from the sun’s deadly radiation
Earth’s axis • Earth is divided into hemispheres- equator divides N & S, while Prime Meridian divides E&W. • Earth’s Axis- 23. 5° - causes seasons- the uneven distribution of heat causes ocean currents and the weather
Continental Drift • Earth’s crust is broken up into plates which float around on magma and bump into each other. • Plates move at a rate of between ½ to 4 inches annually
Continental Drift • Convergence- when 2 plates come together, forming mountains • Subduction- when 1 plate slides under the other • Divergence- when magma rises to the surface, creating new ocean floor- sea floor spreading • Transform- when 2 plates slide against each other- fault line • Continental rift- when a continent is pulled apart
Landforms • Create a map of your own country. Choose 10 landforms to label on the map. Define them on the back and provide a real world example. Color the map. Good Luck! • Archipelago, bay, canal, canyon, cape, channel, cliff, continental shelf, continental divide, delta, fork, river source, river mouth, glacier, gulf, harbor, highland, hill, island, isthmus, lake, mountain, ocean, peak, peninsula, plain, plateau, sound, strait, swamp, tributary, valley, volcano, fjord
- Theory of plate tectonics
- Concept map plate tectonics
- Plate tectonics
- Oreo cookies and plate tectonics answers
- Compare continental drift and plate tectonics
- Constructive plate boundary diagram
- Plate tectonics
- Explain the theory of plate tectonics.
- Plate tectonics
- Candy bar tectonics
- Fossils as evidence of continental drift
- Evidence of the theory of plate tectonics
- Plate tectonics
- Chapter 8 plate tectonics
- Summarize the theory of plate tectonics
- Plate tectonics
- Plate tectonics interactive lab
- Continental drift webquest
- Oreo cookies and plate tectonics
- Earth rotation
- Plate tectonics definition
- Plate tectonics
- Plate tectonics game board
- The plate tectonics theory states that:
- Plate boundaries apes
- Plate tectonics vs continental drift
- Chapter 8 plate tectonics
- Plate tectonics jeopardy
- Harry hess and seafloor spreading
- Map of plate tectonics
- Transform boundary oreo
- Plate tectonics vocabulary worksheet
- Pangaea
- Plate tectonics vs continental drift
- Future plate tectonics
- Driving force of plate tectonics