techtonic plates
.How big are tectonic plates?
Size can vary greatly, from few hundred to thousand kilometers across.Pacific and Antarctic are the largest.
Does a rock cycle ever stop?
What is the top layer of the earth?
.Why are volcanoes so important to scientist?
They help them determine the type of material inside the Earth
Why doesn’t the geyser,old faithful,erupt all the time?
it only squirts
Pangea means?
All the continents were once part of a supercontinent.
What are products of the rock cycle?
three type of rocks
What is the center of the earth?
Magma that erupts from volcano come from the what?
mantle
North america is moving away from Europe at what rate per year?
Scientist think that the earth is made up of what?
tectonic plates
What happens to sediment when they cement together?
it turn to a rock
What is the core?
center of the Earth
How is geyser like a volcano?
Geysers explode water and volcanoes explode magma
Who is Alfred Wegener?
He came with theory about continental drift.
What does magma turn into when it cools down?
it turns to igneous rock
What is in the very middle of the Earth?
inner core
How are land features reshaped by plate tectonics?
Oceanic and continental plates come together, spread apart and interact at boundaries all over the planet.
What shifting tectonic plates cause?
earthquakes
What happens to a metamorphic rock when it melts?
it turns to magma
.How many spaces is the mantle away from the very middle?
Where are the tectonic plates located,and what are the names of the major plates?
under the continents.The 7 major plates are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.