What is the difference between magma and lava?
Magma is below ground, and lava is above ground.
Describe the concept of the rock cycle.
Rocks are always changing, and any type of rock can be turned into another type by natural processes.
Based on the pictures and descriptions, classify each of these rocks.
1: sedimentary, 2: sedimentary, 3: metamorphic, 4: igneous
This diagram shows one way rocks are formed. Which type of rock is formed by these processes?
sedimentary
How do geologists classify rocks?
By how they're formed
In the rock cycle, which process comes after deposition?
Sedimentation
What processes cause a rock to change into an igneous rock?
melting, cooling, & crystallization
What will happen to the magma at location E once it cools and crystallizes?
It will form igneous rock.
What causes a rock to change into a metamorphic rock?
heat & pressure
Which type of rock forms if a rock is melted down and then crystallizes?
igneous
What is the difference between intrusive igneous rock and extrusive igneous rock?
Intrusive igneous rock forms from magma underground, and extrusive igneous rock forms from lava above ground.
True or False: When a rock has gone through every stage of the rock cycle, it won't change anymore.
False
Granite is a hard rock and forms from cooling magma. That means that granite is what type of rock?
igneous
In the rock cycle, which process comes after erosion?
deposition
Which processes turn rock into sediment?
weathering & erosion
Which type of rock is formed under high heat and pressure?
metamorphic
In the rock cycle, which process comes after sedimentation?
Heat or pressure
Which type of rock is MOST likely to contain fossils?
sedimentary