This week

This week we mainly studyied tetonic plates and how the planet evolved over billions of years. The reason why we have a core full of magma was because a world like mars crashed into the Earth and mixed the land ind inner fratures together. Plates came together gorming mountains, or volcanos. As the volcanos erupted new land developed. We learned about the 3 different types of bounderies, Divergent, Convergent, and Transform Bounderies. Divergent bounderies is when plates move apart, Convergent ones are when the plates push together,this causes mountains and higher elevations/land to form, lastly their are Transform Bounderies this is when plates scrape past eachother

This picture is showing all the bounderies
These are the earths major plates

The World's Lithospheric Plate sizes
Plate
Area (km2)
Plate
Area (km2)
Pacific
103,300,000
Scotia
1,600,000
North American
75,900,000
Burma microplate
1,100,000
Eurasian
67,800,000
Fiji microplates
1,100,000
African
61,300,000
Tonga microplate
960,000
Antarctic
60,900,000
Mariana microplate
360,000
Australian
47,000,000
Bismark microplate
300,000
South American
43,600,000
Juan de Fuca
250,000
Somali
16,700,000
Solomon microplate
250,000
Nazca
15,600,000
South Sandwich microplate
170,000
Indian
11,900,000
Easter microplate
130,000
Philippine
5,500,000
Juan Fernandez microplate
96,000
Arabian
5,000,000
Rivera microplate
73,000
Caribbean
3,300,000
Gorda microplate
70,000
Cocos
2,900,000
Explorer microplate
18,000
Caroline microplate
1,700,000
Galapagos microplate
12,000