Igneous Rocks Worksheet
Explore the formation, types, and characteristics of igneous rocks in this Grade 5 science worksheet.
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Igneous Rocks Exploration
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Read each question carefully and answer to the best of your ability. Good luck!
Igneous rocks are formed from the cooling and solidification of molten rock. This molten rock can be either magma (found beneath the Earth's surface) or lava (found on the Earth's surface after a volcanic eruption). The rate at which the molten rock cools affects the size of the crystals that form within the igneous rock.
1. Igneous rocks are formed from:
Sand and mud
Molten rock
Pieces of other rocks
Plant and animal remains
2. What is molten rock called when it is still beneath the Earth's surface?
Lava
Sediment
Magma
Obsidian
3. The cooling and solidification of molten rock creates rocks.
4. When magma cools very quickly, the crystals formed in the igneous rock will be .
5. All igneous rocks have large, visible crystals.
True
False
6. Explain the difference between intrusive and extrusive igneous rocks.
Use the words below to complete the sentences.
7. When a erupts, molten rock flows out as lava.
8. The size of in an igneous rock depends on how fast it cools.