Everything for the Earth’s Systems test: study cards, the traps to dodge, a practice quiz at three levels — Foundation, On-Level, and Challenge — and a lab where you label the water cycle and Earth’s layers, walk a lap of the rock cycle, and graph a river after a storm. Work here, or print it and use a pencil — both count.
One engine is inside. Heat from deep in the Earth moves the rock — slowly, and with enormous force.
Two engines: Earth's inside heat moves the rock, and the Sun's heat moves the water and the air. On any question in this unit, ask which engine is doing the work.
Four things people get wrong
⚠️People often think…
Weathering and erosion are two words for the same thing.
Three words, three jobs: weathering BREAKS the rock, erosion CARRIES the pieces, deposition DROPS them somewhere new.
Break, carry, drop — in that order.
⚠️People often think…
A cold week means the climate is changing back.
Weather is what happens today. Climate is the pattern over decades. One cold week is a data point, not a trend — the same way one bad game is not a losing season.
One week is a data point, not a pattern.
⚠️People often think…
Wherever plates collide, you get volcanoes.
Two continents colliding crumple upward into mountains. Volcanoes need one plate diving underneath and melting — that is a different kind of boundary.
Crumple up: mountains. Dive under: volcanoes.
⚠️People often think…
The inner core is liquid because it is the hottest part.
The inner core is solid. It is hotter, but the pressure down there is so enormous that it squeezes the iron solid. The OUTER core is the liquid one.
Inner: solid. Outer: liquid. Pressure wins.
Which engine? Then which word?
1Watch one
The Grand Canyon. Which engine carved it?
A river did the cutting.
Rivers run on water the Sun lifted.
So this is the Sun's engine.
Weathering broke the rock; erosion carried it away.
2Do one with me
The Himalayas are still getting taller, and they are also being worn down at the top.
Two plates are
Which engine raises them?
Which engine wears them down?
💬One sentence, then you move on
What is the difference between weathering, erosion and deposition?
3Try one
Illinois gets one unusually cold week in July. Does that change the climate? Write yes or no.
I want a hint first
Weather is measured in days. Climate is measured in decades.
💬Last one — then you're done here
Why doesn't one cold week change a climate?
Where this goes
Where this lives
A flooded basement after a storm, a beach that moved down the shore over a winter, and why Illinois gets tornadoes and not hurricanes.
What this feeds
Next unit is space systems — the same Sun, seen from further back.
Name one thing outside your window that one of the two engines built.
One card at a time — tap “Show me” to check yourself, then Next. Start at Foundation; when those feel easy, climb.
Helpful Hints
🪜 From the core to the clouds — the ladder
Inner heat → mantle convection → moving plates → boundaries → mountains, quakes, volcanoes → weathering and erosion → sediment and rock → rivers, oceans, clouds → weather, then climate.
Heat below, Sun above, water in between.
🤝 The whole topic in one idea
Two engines run the planet: heat inside Earth moves the rock, and the Sun’s heat moves the water and air. Every landform, storm and hazard is one of those two engines at work.
Which engine? Inside heat or the Sun?
⚠️ Traps the test loves
Weathering breaks; erosion carries; deposition drops. Three words, three jobs.
Evaporation goes UP (liquid → vapor); condensation makes clouds; precipitation comes DOWN.
Weather is today; climate is decades. A cold day doesn’t change a climate.
Continents colliding make mountains, not volcanoes — volcanoes need a plate diving and melting.
The inner core is SOLID (pressure), the outer core is LIQUID.
Hurricanes need ocean; Illinois gets tornadoes.
↔️ Three boundaries — the chart
Boundary
Plates…
You get
Real place
Divergent
pull apart
new crust, ridges, rift valleys
Mid-Atlantic Ridge, Iceland
Convergent
push together
mountains; or volcanoes + a trench when an ocean plate dives
Himalayas; Japan, Andes
Transform
slide past
earthquakes, no volcanoes
San Andreas Fault
Apart · together · past.
🎯 How the test will ask
Arrows on two plates — “what forms here?” (read the chart above).
A map of earthquake dots — “why this pattern?” (they trace the plate boundaries).
A rain and river table — “why does the river peak after the rain stopped?” (runoff takes time to arrive).
A weather map with fronts — “predict tomorrow” (cold front: storms then clear and cool).
✅ Before the test, can you…
Name the four layers and say which is liquid?
Describe all three boundaries with a real place each?
Walk a rock all the way around the rock cycle?
Draw the water cycle and mark where the Sun works and where gravity works?
Explain a flood on a sunny day?
Pick your level
Look back at anything you missed — the hint that appeared is exactly what to reread tonight.
How sure did you feel?
Lab
Work like a scientist: label the diagrams, turn the table into a graph, then write a claim with evidence and reasoning. Every lab checks itself on the spot, and hints are free.
Your practice never leaves this device. There is no account and no sign-in. Your work is saved in this browser only, and you can erase it whenever you want.
Your practice record — saved on this device
This is your record of the module on screen — it stays here and goes nowhere. Independent means you got it right on the first tap; supported means you got it after the explain-and-retry, or marked ‘I had it’ on a revealed answer. Both count, and neither is a grade. If your teacher asks, copy the row or show them this screen.
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Level
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Independent
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Supported
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Hints used
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Cards studied
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Lab
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Traps met
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Explained in own words
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The answer key is for a teacher: it prints only from here, for the unit on screen. Print the study packet prints the study pages and a blank quiz — never the answers.