rock and sediments are moved by things like gravity,wind and water
What is erosion
200
thinnest layer, under continents and oceans, outermost layer, 5-20 miles thick,in big plates
What is 3 facts about the crust
200
melted rock on the earths surface
What is lava
200
MI was covered with glaciers during
What is the ice age
300
scientist think that millions of years ago all of earth's continents were one super Continent called
What is pangea
300
an active volcano that has not erupted in a long time but is suppose to erupt again
What is a dormant volcano
300
they move rocks and and sediments to other places on land
What is explain how ice, running water and gravity are agents of erosion
400
sphere, solid, earth's center
What is 2 facts about the inner core
400
a mountain that forms when magma flows through cracks in the earth
What is a volcano
400
warm periods of time between ice ages
What is inter glacial periods
500
liquid layer, probably made of melted iron, lies below the mantle
What is 2 facts about the outer core
500
two types of volcanic rock
What is pumice and obsidian
500
weathering from root wedging , ice wedging, gravity,water and wind breaks the tops of the mountains down into smaller rock fragments over time and they slowly erode away, moving down the mountain