Question

how rock cycle changes the earth’s surface
since rock cycle has no ______, any type of rock will continue to transform into a new rock as long as it undergoes ____, ____, or ____. this continuous cycle contributes significantly to the changes on ______.

the rock cycle ______ the earth’s crust. first, rocks would ____ deep down into the interior. then, they would ______ back up again as magma

the earth’s crust is composed of ____ igneous, __ metamorphic, and __ sedimentary rocks. but ____ of the land surface contains sedimentary rocks.

different ______ were created while different types of rocks were also forming during the rock cycle. an example is the ____ which has sedimentary rock layers dating back to 2 billion years ago. they include ____, ____, and ______ all stacked on top of one another.

for sedimentary rocks, ______ layers of rock pile up on top of the older layers on the ____. like glue, each successive layer ______ over tens of millions of years.

images: cross - section of rock layers, grand canyon (labeled)

Explanation:

To solve this fill - in - the - blank problem about the rock cycle, we can use our knowledge of geology (a subfield of Natural Science, specifically Earth Science which is part of Geography or Geology in the given subfields) to determine the appropriate words.

1. First paragraph blanks

• Since the rock cycle is a continuous process, it has no “end”. So the first blank: “end”.
• Rocks in the rock cycle can undergo “melting”, “weathering and erosion” (or “sedimentation”), or “metamorphism”. These are the three main processes of the rock cycle. So the next three blanks: “melting”, “weathering and erosion” (or “sedimentation”), “metamorphism”.
• The rock cycle contributes to changes on the “Earth's surface”. So the last blank in this paragraph: “Earth's surface”.

2. Second paragraph blanks

• The rock cycle “recycles” the Earth's crust. So the first blank: “recycles”.
• Rocks would “sink” deep down into the interior (due to processes like subduction). So the second blank: “sink”.
• Then, they would “rise” back up again as magma (through processes like volcanic activity). So the third blank: “rise”.

3. Third paragraph blanks

• The Earth's crust is composed of “igneous”, “metamorphic”, and “sedimentary” rocks. The proportions: about “95%” of the crust (by volume) is igneous and metamorphic, and “75%” of the land surface contains sedimentary rocks (these are approximate values based on geological knowledge). So the blanks: “igneous” (first), “metamorphic” (second), “sedimentary” (third), and for the last blank: “75%” (or a similar proportion indicating the majority of the land surface has sedimentary rocks).

4. Fourth paragraph blanks

• Different “landforms” were created while different types of rocks were also forming during the rock cycle. So the first blank: “landforms”.
• An example is the “Grand Canyon” which has sedimentary rock layers dating back to 2 billion years ago. So the second blank: “Grand Canyon”.
• The sedimentary rock layers in the Grand Canyon include “limestone”, “sandstone”, and “shale” (these are common sedimentary rocks found in the Grand Canyon) all stacked on top of one another. So the next three blanks: “limestone”, “sandstone”, “shale”.

5. Fifth paragraph blanks

• For sedimentary rocks, “new” layers of rock pile up on top of the older layers on the “ocean floor” (or “seabed”, as sedimentary rocks often form in marine environments). So the first blank: “new”, the second blank: “ocean floor”.
• Like glue, each successive layer “hardens” (or “cements”) over tens of millions of years (this is the process of lithification). So the last blank: “hardens” (or “cements”).

Final Answers (filling in the blanks in order)

1. end; melting; weathering and erosion (or sedimentation); metamorphism; Earth's surface
2. recycles; sink; rise
3. igneous; metamorphic; sedimentary; 75% (approximate)
4. landforms; Grand Canyon; limestone; sandstone; shale
5. new; ocean floor; hardens (or cements)

(Note: Some of the answers, especially the proportional ones and the specific rock types, can have slight variations based on different educational resources, but the above are the generally accepted answers for this type of rock - cycle - related fill - in - the - blank problem.)

Answer:

To solve this fill - in - the - blank problem about the rock cycle, we can use our knowledge of geology (a subfield of Natural Science, specifically Earth Science which is part of Geography or Geology in the given subfields) to determine the appropriate words.

1. First paragraph blanks

• Since the rock cycle is a continuous process, it has no “end”. So the first blank: “end”.
• Rocks in the rock cycle can undergo “melting”, “weathering and erosion” (or “sedimentation”), or “metamorphism”. These are the three main processes of the rock cycle. So the next three blanks: “melting”, “weathering and erosion” (or “sedimentation”), “metamorphism”.
• The rock cycle contributes to changes on the “Earth's surface”. So the last blank in this paragraph: “Earth's surface”.

2. Second paragraph blanks

• The rock cycle “recycles” the Earth's crust. So the first blank: “recycles”.
• Rocks would “sink” deep down into the interior (due to processes like subduction). So the second blank: “sink”.
• Then, they would “rise” back up again as magma (through processes like volcanic activity). So the third blank: “rise”.

3. Third paragraph blanks

• The Earth's crust is composed of “igneous”, “metamorphic”, and “sedimentary” rocks. The proportions: about “95%” of the crust (by volume) is igneous and metamorphic, and “75%” of the land surface contains sedimentary rocks (these are approximate values based on geological knowledge). So the blanks: “igneous” (first), “metamorphic” (second), “sedimentary” (third), and for the last blank: “75%” (or a similar proportion indicating the majority of the land surface has sedimentary rocks).

4. Fourth paragraph blanks

• Different “landforms” were created while different types of rocks were also forming during the rock cycle. So the first blank: “landforms”.
• An example is the “Grand Canyon” which has sedimentary rock layers dating back to 2 billion years ago. So the second blank: “Grand Canyon”.
• The sedimentary rock layers in the Grand Canyon include “limestone”, “sandstone”, and “shale” (these are common sedimentary rocks found in the Grand Canyon) all stacked on top of one another. So the next three blanks: “limestone”, “sandstone”, “shale”.

5. Fifth paragraph blanks

• For sedimentary rocks, “new” layers of rock pile up on top of the older layers on the “ocean floor” (or “seabed”, as sedimentary rocks often form in marine environments). So the first blank: “new”, the second blank: “ocean floor”.
• Like glue, each successive layer “hardens” (or “cements”) over tens of millions of years (this is the process of lithification). So the last blank: “hardens” (or “cements”).

Final Answers (filling in the blanks in order)

1. end; melting; weathering and erosion (or sedimentation); metamorphism; Earth's surface
2. recycles; sink; rise
3. igneous; metamorphic; sedimentary; 75% (approximate)
4. landforms; Grand Canyon; limestone; sandstone; shale
5. new; ocean floor; hardens (or cements)

(Note: Some of the answers, especially the proportional ones and the specific rock types, can have slight variations based on different educational resources, but the above are the generally accepted answers for this type of rock - cycle - related fill - in - the - blank problem.)