Question

part 4: rock identification practice
directions: read each description and classify the rock type.
a. rock with visible crystals, formed from cooling magma underground.
rock type: ______
b. rock with layers and fossils, formed from compacted sediments.
rock type: ______
c. rock with banded or folded layers due to intense heat and pressure.
rock type: ______

Explanation:

• Igneous rocks form from cooling magma. Intrusive igneous rocks (like granite) cool slowly underground and have visible crystals.
• Sedimentary rocks form from compacted sediments. They often have layers (strata) and may contain fossils.
• Metamorphic rocks form due to intense heat and pressure. They can have banded or folded layers (e.g., gneiss has banded appearance from metamorphism).

Answer:

A. Igneous Rock
B. Sedimentary Rock
C. Metamorphic Rock