earths structure CH1

Question 1

in your mind label the inside of the earth? (mantle) (outer core) (oceanic crust) (continental crust) (inner core)

Answer 1

inside order: inner core, outer core, mantle, crusts

Question 2

explain continental drift?

Answer 2

the movement of continents over millions of years to their present location due to convection currents on the mantle

Question 2

explain continental drift?

Answer 2

the movement of continents over millions of years to their present location due to convection currents on the mantle

Question 3

name the 2 main minerals found in the earths core?

Answer 3

iron and nickel

Question 4

name the 2 main minerals found in the earths core?

Answer 4

iron and nickel

Question 5

what is the term for the boundary between earths crust and mantle?

Answer 5

moho discontinuity

Question 5

what is the term for the boundary between earths crust and mantle?

Answer 5

moho discontinuity

Question 6

what are endogenic forces?

Answer 6

forces that operate below the surface of the earth and create landforms

Question 7

name an example of a mid ocean ridge?

Answer 7

carlsberg ridge

Question 8

where does subduction take place?

Answer 8

where the oceanic plate is heavier

Question 8

where does subduction take place?

Answer 8

where the oceanic plate is heavier

Question 9

what plate boundary is found near north America and south America?

Answer 9

Nacza

Question 10

what plate boundary is found to the right of Australia and near Asia?

Answer 10

pacific

Question 11

what is the main difference in the formation of a dyke and a sill

Answer 11

Dykes are igneous rocks that intrude vertically (or across), while sills are the same type of rocks that cut horizontally (or along) in another land or rock form.

Question 12

What is the name for the solid layer of rock around the earth which consists of the
upper mantle and the crust?

Answer 12

lithosphere

Question 13

Explain the role of convection currents?

Answer 13

beneath the plates, move the plates in different directions

Question 14

Explain divergent plate boundaries?

Answer 14

when 2 plates separate, magma rises and new rock is formed

Question 15

Explain convergent plate boundaries?

Answer 15

when 2 plates collide, the thicker plate slides beneath the other plate (subduction). the oceanic plate melts as it reaches the hot mantle, mountains form from folding

Question 16

what are endogenic forces?

Answer 16

forces that operate below the surface of the earth and create landforms

Question 16

what is the main difference in the formation of a dyke and a sill

Answer 16

Dykes are igneous rocks that intrude vertically (or across), while sills are the same type of rocks that cut horizontally (or along) in another land or rock form.

Question 16

where does subduction take place?

Answer 16

where the oceanic plate is heavier

Question 16

Explain transform plate boundaries?

Answer 16

when 2 plates slide past each other. Tension builds up and eventually there is a slip and lots of energy is released causing earthquakes. San Andreas fault

Question 17

what is the term for the boundary between earths crust and mantle?

Answer 17

moho discontinuity

Question 17

what plate boundary is found near north America and south America?

Answer 17

Nacza

Question 17

name the 2 main minerals found in the earths core?

Answer 17

iron and nickel

Question 17

what plate boundary is found to the right of Australia and near Asia?

Answer 17

pacific

Question 17

name an example of a mid ocean ridge?

Answer 17

carlsberg ridge

Question 17

What is the name for the solid layer of rock around the earth which consists of the
upper mantle and the crust?

Answer 17

lithosphere