Rock Classification

4th Grade Science

Rock Classification

Multiple Select

Which rocks did you classify as extrusive?

• Basalt

• Pumice

• Gabbro

• Granite

Multiple Select

If you examine a rock sample and observe fossils in it, what type of rock does the sample represent?

Hint: Explanation: Fossils are found only in _____ __rocks.

• Igneous

• Metamorphic

• Sedimentary

• Fossils are found in several of the types listed above.

Multiple Select

Which rocks did you classify as intrusive igneous rocks?

• Basalt

• Pumice

• Gabbro

• Granite

Multiple Select

to organize objects or events into groups based on common characteristics. 🤔

• Foliation

• Fossil

• Igneous rock

• Extrusive igneous rock

• Classify 🤔

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rock formed from

the cooling of molten rock on Earth’s surface. Most

extrusive igneous rocks originate in volcanic eruptions. Because

they cool quickly, extrusive igneous rocks have small crystals or no crystals at all.🤔

• Foliation

• Fossil

• Igneous rock

• Extrusive igneous rock 🤔

• Classify

Multiple Select

the texture of a metamorphic rock in which mineral grains are aligned like the pages of a book. 🤔

• Foliation

• Fossil

• Igneous rock

• Extrusive igneous rock

• Classify

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rock formed from the cooling of molten rock. 🤔

• Foliation

• Fossil

• Igneous rock

• Extrusive igneous rock

• Classify

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the remains or traces of a once-living organism that is preserved in rock. 🤔

• Foliation

• Fossil

• Igneous rock

• Extrusive igneous rock

• Classify

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the sizes, shapes, and positions of the grains in a rock. 🤔

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

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rock that has been changed by heat and pressure. Metamorphic

rocks often are formed at plate boundaries and in mountain ranges. Metamorphic rocks often exhibit foliation, folding, and deformation.

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

Multiple Select

rock formed from sediments, organic remains, or chemical precipitates.

Clastic sedimentary rocks are composed of rock fragments cemented together. Organic sedimentary rocks are composed of the remains of living organisms.

Chemical sedimentary rocks are formed from chemicals dissolved in water.

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

Multiple Select

layers of sedimentary rock that form from the deposition of sediments. Stratum is the singular form of strata. 🤔

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

Multiple Select

Fossils are the remains of ancient plants and animals. Which type of rock do you think is most likely to contain fossils?

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

Multiple Select

Foliation occurs when minerals are flattened by heat and pressure. This results in a layered or banded texture. Which type of rock do you think is foliated? 🤔

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Texture

Multiple Select

Air pockets can form in rapidly cooling magma or lava. In which type of rock would you expect air pockets? 🤔

• Metamorphic rock

• Mineral

• Sedimentary rock

• Strata

• Igneous rock

Multiple Select

What are some different ways you could classify these marbles?

• The marbles can be classified by size, weight, or pattern.

• The marbles can be classified by favorite, weight, or pattern.

• The marbles can be classified by size, color, or pattern.

• The marbles can be classified by taste, weight, or pattern.

Multiple Select

2.What characteristics do you think scientists use to classify rocks?

• Scientist classify students by texture, composition, and how rocks form.

• Scientist classify rocks by texture, composition, and how rocks form.

• Scientist classify rocks by texture, composition, and how rocks taste.

• Scientist classify rocks by texture, explosions, and how rocks form.

Multiple Select

1. Fossils are the remains of ancient plants and animals. Which type of rock do you think is most likely to contain fossils?🤔

• Grunsky rocks in Mr. Fuertis class

• Igneous

• Metamorphic

• Sedimentary

Multiple Select

2.Foliation occurs when minerals are flattened by heat and pressure. This results in a layered or banded texture. Which type of rock do you think is foliated?

• melted

• Igneous

• Metamorphic

• Sedimentary

Multiple Select

3.Air pockets can form in rapidly cooling magma or lava. In which type of rock would you expect air pockets?

• melted

• Igneous

• Metamorphic

• Sedimentary

Multiple Select

What are the characteristics of Igneous rocks?

Multiple Select

What are the characteristics of Metamorphic rocks?

Multiple Select

What are the characteristics of Sedimentary rocks?

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What are the type of rocks for Igneous?

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What are the type of rocks for Sedimentary?

Multiple Select

What are the type of rocks for Metamorphic?

Multiple Select

Which rocks did you classify as extrusive igneous rocks?

• Basalt

• Pumice

• Gabbro

• Granite

Multiple Select

Which rocks did you classify as intrusive igneous rocks?

• Basalt

• Pumice

• Gabbro

• Granite

Multiple Select

Which rocks did you classify as intrusive igneous rocks?

• Basalt

• Pumice

• Gabbro

• Granite

Multiple Select

1. Analyze: What features did you use to classify igneous rocks as extrusive or intrusive?

• I used fossil size and the presence or absence of air holes.

• I used mineral crystal size and the presence or absence of air holes.

• I used mineral crystal weight and the presence or absence of air holes.

• I tasted the mineral and its crystal size and the presence or absence of air holes.

Multiple Select

Draw conclusions: Extrusive igneous rocks often have air pockets, but intrusive igneous rocks never do. Why do you think is this the case?

• The pressure under the Earth's surface is greatest enough that it would crush any form of air holes.

• The pressure would crush anything from fossils to humans on Mars.

• Scientist are under a lot of pressure because they are studying lots of rocks.

• The gases in magma remain dissolve under high pressure.

Multiple Select

Draw conclusions: Extrusive igneous rocks often have air pockets, but intrusive igneous rocks never do. Why do you think is this the case?

• The pressure under the Earth's surface is greatest enough that it would crush any form of air holes.

• The pressure would crush anything from fossils to humans on Mars.

• Scientist are under a lot of pressure because they are studying lots of rocks.

• The gases in magma remain dissolve under high pressure.

Multiple Select

If you examine a rock sample and observe fossils in it, what type of rock does the sample represent?

HInt: Explanation: Fossils are found only in ______ _ rocks.

• Igneous

• Metamorphic

• Sedimentary

• Fossils are found in several of the types listed above.

Multiple Select

Which of the following is a sample of igneous rock?

HINT: Explanation: Of the four rocks, only rock B is composed of interlocking crystals with no layering. Rocks A and D are metamorphic rocks that show banding and foliation. Rock C is a sedimentary rock that contains fossils.

• Sample A

• Sample B

• Sample C

• Sample D

Multiple Select

Which of the rock samples below is most likely to be a metamorphic rock?

Hint: Explanation: Rock D (schist) is the only rock to show foliation, which is characteristic of many metamorphic rocks. Rock A (fossil limestone) is a sedimentary rock that contains fossils. Rock B (conglomerate) is a sedimentary rock composed of cemented pebbles. Rock C (pumice) is an igneous rock that contains millions of tiny vesicles, or holes.

• Sample A

• Sample B

• Sample C

• Sample D

Multiple Select

Where would the rock sample shown be formed in the diagram below?

Hint: Explanation: The rock sample shown is light in color and displays a fossil. These are both characteristics of sedimentary rock. Sedimentary rocks form below shallow seas like the location shown at C.

• location A

• location B

• location C

• location D

Multiple Select

Where would the rock sample shown be formed in the diagram below?

Hint: Explanation: The rock sample shown is light in color and displays a fossil. These are both characteristics of sedimentary rock. Sedimentary rocks form below shallow seas like the location shown at C.

• location A

• location B

• location C

• location D

Multiple Select

The location marked by the black rectangle is characterized by high temperature and pressure. What rock type would most likely be formed in this location?

Hint: Explanation: Igneous rock is formed in the region of the volcanic activity. Sedimentary rock is formed from sediments deposited in shallow seas. Metamorphic rock is formed deep beneath the Earth's surface in conditions of great pressure and heat. The region shown is deep below the surface in a region of high pressure, so metamorphic rock is most

• Igneous

• Metamorphic

• Sedimentary

• None of the above