Chapter 7

HideShow resource information
What is the correct order for the layers of the Earth?
Core, mantle, crust
1 of 18
What is the inner core and outer core made of?
Inner core liquid nickel and iron / Outer core solid nickel and iron
2 of 18
What causes the convection currents?
Radioactive decay from the mantle
3 of 18
What is the solid outer layer of the Earth called?
The crust
4 of 18
Give three reasons why scientists can't predict when earthquakes will happen
There is no patten / the tectonic plates can stay still for a while and then suddenly move / They don't know exactly what's below the Earth
5 of 18
What name is given to the sections of the crust that float on the mantle?
Tectonic plates
6 of 18
At what rates do tectonic plates move?
A few centimetres per year
7 of 18
What do geologists call the earth's crust and upper mantle? (Hint * Lith.....)
Lithosphere
8 of 18
What causes tectonic plates to move?
Convection currents in the mantle
9 of 18
3 Evidence of plate tectonics
Matching fossils found in both Africa and S. America / Jigsaw fit of continents / Living creatures such a earthworm found in both Africa and S. America
10 of 18
What is the Earth's hottest layer?
The inner core (core is acceptable)
11 of 18
The part of the Earth we live on is called the __________.
The crust
12 of 18
Why don't earthquakes rarely take place in the UK?
Because the UK is not near the plate boundaries
13 of 18
What causes an earthquake to occur?
Earthquakes happen when the plates suddenly slip past one another
14 of 18
Where are volcanoes and earthquakes likely to happen?
At the plate bundaries
15 of 18
Who proposed the theory of continental drift?
Alfred Wegener
16 of 18
What was Wegener's theory?
He thought that the Earth's continents were once joined together, but gradually moved apart over millions of years.
17 of 18
Why was Wegener's theory not accepted by most scientists?
He could not explain how the plates moved
18 of 18

Other cards in this set

Card 2

Front

What is the inner core and outer core made of?

Back

Inner core liquid nickel and iron / Outer core solid nickel and iron

Card 3

Front

What causes the convection currents?

Back

Preview of the front of card 3

Card 4

Front

What is the solid outer layer of the Earth called?

Back

Preview of the front of card 4

Card 5

Front

Give three reasons why scientists can't predict when earthquakes will happen

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all The earth and its atmosphere resources »