Extreme Earth!
This Earth sphere is most directly responsible for creating hurricanes.
Atmosphere
This process turns sediment into sedimentary rock through pressure and mineral “glue.”
Compaction and Cementation
This tide occurs when the Sun and Moon pull at right angles to each other.
Neap Tide
This layer is solid rock but behaves plastically, allowing tectonic plates to move above it.
Asthenosphere
This sphere would be directly affected first if a massive dust storm reduces air quality across a region.
Atmosphere
This is the TRUE reason we experience seasons on Earth — and it is NOT Earth’s distance from the Sun.
Earth’s 23.5° axial tilt
This motion of Earth takes about 24 hours to complete.
Rotation
An earthquake begins in this Earth layer before energy travels to the surface.
Crust (or Lithosphere)
A rock exposed to intense heat and pressure but not melted becomes —
Metamorphic rock
If the Moon disappeared, what would most likely happen to Earth’s ocean tides?
They would become much weaker
If Earth suddenly stopped having a magnetic field, which internal layer would most likely be responsible?
Outer Core
When plant roots break apart rock while absorbing water, three spheres are interacting. Name them.
Biosphere, Geosphere, Hydrosphere
When the Northern Hemisphere is tilted toward the Sun, this season is occurring there.
Summer
This motion of Earth is responsible for one full year.
Revolution
A tsunami forms after an underwater earthquake. Which two Earth systems are interacting first?
Geosphere and Hydrosphere
Magma that cools slowly underground forms what type of texture?
Large crystals / Coarse-grained
During this alignment, high tides are higher and low tides are lower than usual.
Spring Tide
The crust and uppermost mantle together form this rigid layer.
Lithosphere
A drought lowers river levels, kills crops, and increases wildfires. Which two spheres are most directly responsible for starting this chain reaction?
Hydrosphere and Atmosphere
During this event, day and night are nearly equal in length worldwide.
Equinox
Day and night are caused by this motion.
Rotation
A coral reef dies after ocean water becomes too warm. Which two spheres are interacting in this change?
Hydrosphere and Biosphere
Which two processes are required before sedimentary rock can become metamorphic rock?
Burial and Heat/Pressure
Why are tides stronger during a full moon than during a quarter moon?
The Sun and Moon’s gravity combine (aligned) during full moon
Which layer increases in temperature and pressure but remains solid due to extreme force?
Inner Core
Melting glaciers raise sea levels and flood coastal cities. Which two spheres are interacting first in this scenario?
Hydrosphere and Atmosphere
A student claims it is hotter in summer because Earth is closer to the Sun.
What evidence proves this claim is incorrect?
Earth is actually slightly closer to the Sun during Northern Hemisphere winter; seasons are caused by tilt, not distance.
A student says winter happens because Earth rotates slower in December.
What is the correct explanation?
Winter happens because of Earth’s tilt during its revolution around the Sun, not because of rotation speed.
After a volcanic eruption, ash blocks sunlight, temperatures drop, glaciers grow, and ecosystems shift.
Name at least three spheres affected and explain how they connect.
Explain how an igneous rock could eventually become sediment again.
Weathering → Erosion → Deposition → Compaction/Cementation
Why are neap tides smaller than spring tides?
Neap tides are smaller because the Sun and Moon are pulling at right angles to each other. Their gravity partly cancels out, so the high tides are not as high and the low tides are not as low.
Seismic waves slow down and change direction when passing through this layer because it is liquid.
Outer Core
A hurricane gains strength over warm ocean water before making landfall and damaging ecosystems. Name all four spheres involved.
Atmosphere, Hydrosphere, Geosphere, Biosphere
If Earth’s tilt were reduced to 0°, what would most likely happen to seasons?
There would be little to no seasonal change (minimal variation in temperature and daylight).
If Earth stopped rotating but continued revolving, what major change would happen on Earth?
There would be no regular day/night cycle (one side would face the Sun for a very long time).