Plate boundaries
When plates slide by each other, creating Earth's largest earthquakes.
Transform boundary
This type of rock is most commonly found under the ocean.
Sedimentary Rock
This kind of rock is formed from sediment compacting and cementing together.
Sedimentary Rock
Are Sand dunes and Mushroom rocks created by WIND, WATER, ICE, GRAVITY, or WAVES?
WIND
What makes the plates move on the Earth's surface?
Convection currents in the mantle.
This kind of rock is most commonly found on top of volcanoes.
Igneous Rock
This kind of rock forms after melted magma cools down.
Igneous Rock
Are the Grand Canyon and River Deltas created by WIND, WATER, ICE, GRAVITY, or WAVES?
Where are most of the plates that moving apart?
Under the ocean (Sea-floor spreading at the mid-ocean ridges)
When plates divide/move apart and magma rises to create new rocks on the Earth's crust.
Divergent
This kind of rock is most commonly found deepest within the Earth's crust, before it melts into magma.
Metamorphic Rock
This kind of rock forms from extreme heat and pressure.
Metamorphic Rock
Are Mountain Valleys and Kettle Lakes created by WIND, WATER, ICE/GLACIERS, GRAVITY, or WAVES?
ICE/GLACIERS
What evidence shows that the continents were once all touching?
Fossils of matching plants & animals, and matching mountain and rock formations found on different continents across the oceans.
When Earth's tectonic plates collide, and create mountains, volcanoes, and deep-ocean trenches.
Convergent
This type of weathering happens from chemicals on the Earth, like acid rain making holes in rocks, or water making caves by dissolving limestone.
Chemical weathering
This is created when rocks break down through weathering, like when we cut the Starbursts into pieces.
Sediment
Did the Grand Canyon and Jewel cave form by a FAST or SLOW change to the Earth's surface?
SLOW
Where can the Earth's crust be 'destroyed'?
Deep ocean trenches
When the ocean floor is dividing, making new crust at the center, and pushing older rocks/crust apart.
Sea-floor spreading
This type of weathering happens when rocks simply break into pieces, like a boulder rolling down a hill, or waves crashing into a cliff and causing it to cave into the ocean.
Physical weathering
Where do EXTRUSIVE Igneous rocks form?
After the lava has EXITED the volcano!
(outside of the volcano)
Do earthquakes and landslides cause FAST or SLOW changes to the Earth's surface?
FAST
True of False: The OLDEST part of the ocean floor is farthest from the mid-ocean ridges, and the YOUNGEST part of the ocean floor is closest to the mid-ocean ridges.
TRUE!