Earth Changes
Rock Formation
Rock Cycle Connections
Plate Tectonics
Big Thinking
100

This process breaks rocks apart over time.

What is weathering?

100

This rock forms when magma cools underground.

What is intrusive igneous rock?

100

This process turns solid rock into molten rock.

What is melting?

100

This theory explains how Earth’s plates move.

What is plate tectonics?

100

Scientists found these on separate continents.

What are fossils?

200

This process moves rock pieces and sediment.

What is erosion?

200

This rock often forms in layers.

What is sedimentary rock?

200

This process changes magma into igneous rock.

What is cooling?

200

This scientist proposed continental drift.

Who is Alfred Wegener?

200

This landform often forms when continental plates collide.

What are mountains?

300

Rivers drop sediment through this process.

What is deposition?

300

This rock forms from heat and pressure.

What is metamorphic rock?

300

These processes help create sediment.

What are weathering and erosion?

300

This boundary forms when plates move apart.

What is a divergent boundary?

300

The rock cycle and plate tectonics both explain this.

What is Earth changes over time?

400

Wind, water, and ice can all cause this type of change.

What is erosion?

400

This process turns loose sediment into rock.

What are compaction and cementation?

400

These conditions change sedimentary rock into metamorphic rock.

What are heat and pressure?

400

This boundary forms when plates slide past one another.

What is a transform boundary?

400

Earthquakes and volcanoes often happen near these.

What are plate boundaries?

500

These three processes shape Earth over time.

What are weathering, erosion, and deposition?

500

This rock type can form from any existing rock under enough heat and pressure.

What is metamorphic rock?

500

This cycle explains how rocks are constantly changing.

What is the rock cycle?

500

These currents in Earth’s mantle move plates.

What are convection currents?

500

These plate boundaries cause earthquakes and fault lines.

What are transform plate boundaries?