Hydrosphere
This force is the primary cause of tides on Earth.
The Moon’s gravity
This type of atom has an unstable nucleus and undergoes decay.
Radioactive isotope
This boundary type creates new ocean crust as magma rises and solidifies.
Divergent boundary
This weather phenomenon often forms on hot, sunny days due to rising warm air.
Dust devil
This large circular ocean current system traps debris like the Great Pacific Garbage Patch.
Gyre
In a surface wave, water moves in this pattern.
Circular motion
This process describes chunks of ice breaking off an ice shelf to form icebergs.
Calving
In mantle convection, sinking occurs near plate boundaries where this process is taking place.
Subduction
This type of storm is also known as a tropical cyclone in the Atlantic.
Hurricane
When wind blows along the shore in the correct direction, this process brings cold, nutrient-rich water to the surface.
Upwelling
This process brings deep, nutrient-rich water to the surface.
Upwelling
This principle states that lower rock layers are older than the layers above them.
Law of superposition
This evidence confirmed seafloor spreading by showing symmetrical patterns on either side of mid-ocean ridges.
Magnetic reversals
This type of thunderstorm is capable of producing a funnel cloud.
Supercell
In layered water, the top layer floats because it has this property compared to the water below.
Lower density
A floating extension of a glacier that remains attached to land is called this.
Ice shelf
Starting with 200 atoms and a half-life of 2 years, this is the number of atoms remaining after 6 years.
25 atoms
When two landmasses collide and form mountains instead of volcanoes, these two types of plates are meeting.
Two continental plates
This form of precipitation occurs when melted snow refreezes before reaching the ground.
Sleet
Besides water vapor, this must be present in the air for clouds to form.
Condensation nuclei
When you fire a projectile north from the equator, it will land slightly in this direction due to Earth’s rotation.
East
This process describes large slabs of Earth’s crust rapidly sinking into the mantle during catastrophic events.
Runaway subduction
This happens to oceanic crust as it moves farther from a mid-ocean ridge.
It becomes older and denser
A hurricane’s winds typically ____ over warm ocean water and _____ when it reaches land.
Increase over water; decrease over land
This type of ocean current is driven by differences in temperature and salinity.
Thermohaline current