Let's go through each of the "What Type" questions based on the rock descriptions provided in the image.
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1. What type of rock might contain evidence of past life?
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Sedimentary
*Explanation:* The description says, "Many sedimentary rocks contain fossils of plants or animals." Fossils are evidence of past life, so sedimentary rocks are the correct answer.
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2. What type of rock contains large crystals?
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Igneous
*Explanation:* The text states that "Magma produced igneous rocks have large mineral crystals that formed inside the Earth." Slow cooling of magma allows large crystals to grow.
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3. What type of rock might contain holes from gases?
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Igneous
*Explanation:* The description mentions that "Lava produced igneous rocks can have gas bubbles or tiny crystals that formed outside on the Earth’s surface." These gas bubbles leave behind holes (vesicles) in the rock.
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4. What type of rock has visible flat layers?
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Sedimentary
*Explanation:* Sedimentary rocks are described as being "composed of rounded grains or fragments... cemented together in layers." These layers are often flat and visible.
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5. What type of rock changes by intense heat / pressure?
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Metamorphic
*Explanation:* The description says metamorphic rocks are "formed inside the Earth from heat and pressure," which causes them to change into a new rock type.
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6. What type of rock contains rounded grains?
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Sedimentary
*Explanation:* Sedimentary rocks are made of "rounded grains or fragments of other rocks" that are cemented together. These grains are worn down by water or wind over time.
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7. What type of rock comes from liquid rock material?
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Igneous
*Explanation:* Igneous rocks form from molten rock (magma or lava), which is liquid rock material. When it cools and solidifies, it becomes igneous rock.
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8. What type of rock has wavy banding / layers?
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Metamorphic
*Explanation:* The description notes that "Visible layers may be bent or distorted" in metamorphic rocks due to intense heat and pressure. This often results in wavy or folded bands.
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✔ Final Answers:
1.
Sedimentary
2.
Igneous
3.
Igneous
4.
Sedimentary
5.
Metamorphic
6.
Sedimentary
7.
Igneous
8.
Metamorphic
These answers match the definitions clearly given in the worksheet.
Parent Tip: Review the logic above to help your child master the concept of classifying rocks worksheet.
