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Earth’s Interior Interior=inside. Geologist A geologist is a scientist that studies the forces that shape earth’s surface 200 years ago was the start.

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Presentation on theme: "Earth’s Interior Interior=inside. Geologist A geologist is a scientist that studies the forces that shape earth’s surface 200 years ago was the start."— Presentation transcript:

1 Earth’s Interior Interior=inside

2 Geologist A geologist is a scientist that studies the forces that shape earth’s surface 200 years ago was the start of geology Geology is fairly new

3 Rock The material that forms Earth’s surface Geologists study rocks

4 Forces that shape Earth Construc tive Destruc tive

5 Constructive Building up Ex. Construction The building (MS) was changed constructively.

6 Constructive Mountain ranges forming(slowly) Over millions of years

7 Destructive Forces that slowly wear down the Earth’s surface Destroy =Destruction

8 Destructive Erosion by wind and water Think of our local beaches

9 Journey to the Center of the Earth Temperature increases Pressure increases

10 How do we know what inside Earth is like if we can’t travel through it? Scientist know this by studying seismic waves/data from earthquakes

11 If you took that journey you would find layers of the Earth Crust Mantel Core

12 Crust “skin” of earth Like the shell of an egg or onion skin VERY THIN!!!!!! Includes land on bottom of ocean floor –Thinnest under the ocean(basalt) –Thickest under mountains(granite) Is part of the lithosphere Most abundant element oxygen then silicon

13 Lithosphere Lithosphere means stone Crust and uppermost mantle Rigid Contains plates

14 Oceanic vs. Continental Crust OceanicContinental Under oceansUnder continents thinnerthicker Made of basalt(think salty ocean)Made of granite More denseLess dense

15 Asthenosphere Gooey/bendable Plastic like rock Convection take place here Found in Upper mantle only NOT A LIQUID!!!! SOLID

16 Mantle A layer of hot rock is also part of the lithosphere

17 Core Center of the Earth) Inner core Outer core

18 Acts like a thick liquid

19 Inner Core dense ball of solid metal Heat source for convection Hotter than the sun Spins-creates earth’s magnetic shield

20 The Lithosphere Crust and uppermost mantle Floats on the asthenosphere Broken into pieces- tectonic plates

21 Crust Crust part of the (Lithosphere) –Continental –Less dense –Oceanic –More dense

22 Mantle –Upper Mantle called the asthenosphere


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