Density
Landforms
Plates and Boundaries
Earth's Layers
Wildcard
100
Which has the highest density?
C
100
Which landform happens at convergent boundaries?
mountains
100
When two plates move apart (divide) it is called...
a divergent boundary
100
What is the outermost layer of the Earth called?
crust
100
Something that is unlikely to change is called
stable
200
Do things with high density sink or float?
sink
200
Which landform happens at divergent boundaries?
rift valley
ocean basin
mid-ocean ridge
200
When two plates come together, it is called...
a convergent boundary
200
What is the middle layer of the Earth called?
mantle
200
Something that is likely to change is called...
unstable
300
Do hot things have higher or lower density?
lower density
300
Which landform happens at a transform boundary?
fault line
300
When two plates slide past each other, it is called...
a transform boundary
300
What is the innermost layer of the Earth called?
core
300
Radioactive decay tells scientists...
how old the Earth is
400
Does hot air rise or sink?
rise
400
Which landform is an "adult ocean"?
Mid-ocean ridge
400
In which layer of the Earth are plates located?
crust
400
In which layer do convection cycles happen?
Mantle
400
When unstable materials change to stable materials and give off energy, it is called...
radioactive decay
500
Do things with low density sink or float?
float
500
Which landform is a "baby ocean"?
Rift valley
500
Do plates move or stay still?
Move
500
Why does the Earth's crust move?
Convection cycles in the mantle
500
A "teenage ocean" is called an...
ocean basin