The Fascinating Journey of Rocks Through Time and Change

Rocks are dynamic entities that change shape and composition over time. They can form as igneous rocks from molten magma or lava, which cools to create rocks like granite and obsidian. Weathering and erosion break down rocks into sediments, which can form sedimentary rocks through lithification. Metamorphic rocks arise when existing rocks undergo transformation due to heat and pressure. The rock cycle illustrates how rocks continuously change forms, transitioning between igneous, sedimentary, and metamorphic states.

What is a unique characteristic of rocks mentioned in the introduction?

• They can shapeshift into animals.

• They can change shape and composition.

• They can talk.

• They can fly.

What is the primary difference between magma and lava?

• Magma is solid, lava is liquid.

• Magma is above ground, lava is below.

• Magma is cooler than lava.

• Magma is below ground, lava is above.

Which type of rock is formed from molten rock that cools and solidifies?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Limestone

What process involves the breaking down of rocks into smaller particles?

• Crystallization

• Metamorphosis

• Weathering

• Lithification

What are the small particles called that result from the weathering of rocks?

• Pebbles

• Sediments

• Crystals

• Minerals

What is the first step in the process of lithification?

• Cementation

• Compaction

• Erosion

• Deposition

Which sedimentary rock is formed from calcium carbonate?

• Marble

• Limestone

• Granite

• Obsidian

What happens to a rock when it undergoes metamorphosis?

• It becomes a liquid.

• It breaks into sediments.

• It changes form and structure.

• It melts completely.

What type of rock can limestone transform into under heat and pressure?

• Granite

• Obsidian

• Marble

• Sandstone

What is the continuous process of transformation among different rock types called?

• Weathering cycle

• Rock cycle

• Erosion cycle

• Sedimentation cycle