Name: _________________________________________________ Date: ____________________ Period: ____________
Go to http://www.learner.org/interactives/rockcycle
Click ‘Types of Rocks’. Read the text and answer the following questions (they go in order).
1.
The three rock types are igneous, metamorphic, and sedimentary.
2.
Sedimentary rocks are formed from different particles or fragments of materials called sediment
Sedimentary rocks are usually the only rock type that contains fossils
3.
Metamorphic rocks form because of intense heat and pressure
4.
Metamorphic rocks can be identified based on their ribbonlike layers and may have crystals.
5.
Igneous rocks can form from magma inside the earth. They can also from when a volcano erupts on the surface.
6.
When lava cools very quickly no crystals form. When magma cools slowly large crystals form.
At the bottom of ‘Types of Rocks’ click ‘Next: Start your rock collection’. Make your collection then at the bottom of the page click ‘Identify Rock Types’. Fill in the answers below as you complete the activity on the computer.
7.
Which of the characteristics can you see in marble? crystals
8.
Which of the three main classes does marble belong to?
9.
Which of the characteristics can you see in conglomerate?
10.
Which of the three main classes does conglomerate belong to?
11.
Which of the characteristics can you see in obsidian? metamorphic sedimentary sand or pebbles glassy surface
12.
Which of the three main classes does obsidian belong to?
13.
Which of the characteristics can you see in limestone? igneous fossils
14.
Which of the three main classes does limestone belong to?
15.
Which of the characteristics can you see in gneiss? sedimentary ribbonlike layers
16.
Which of the three main classes does gneiss belong to? metamorphic
Click next chapter or ‘How Rocks Change’. Read the sections and click to watch the video.
Heat and Pressure
17.
Temperatures increase below the earth’s surface where rocks can change without melting or turning back into magma.
18.
Rocks can also transform when pressure caused by tons of other rocks press down from above.

Click the ‘Next’ button on the bottom right corner of the page.
Heating and Cooling
19.
When a rock melts, it turns into a substance called magma
20.
When lava explodes from a volcano it forms an extrusive igneous rock.
21.
Magma inside the earth cools very slowly forming intrusive igneous rock.
Click the red ‘Next’ button on the bottom right corner of the page.
Weathering & Eroding and Compaction & Cementing
22.
Over time sediment accumulate in layers, the weight presses the sediments together, compacting them.
23.
Water passes through the spaces between the particles cementing them together even more.
24.
The process of compacting and cementing sediment forms sedimentary rock.
Click ‘Transform the Rock’ at the bottom of the page. The questions below correspond to the activity’s questions. Fill in the answers while you complete the activity on the computer.
25.
What can turn pebbles and sand into a conglomerate? compacting and cementing
26.
What process can turn limestone into marble? heat and pressure
27.
What process can turn obsidian into sediment? weathering and erosion
28.
What process can turn gneiss into magma? melting
29.
Magma deep inside the earth turns into granite. What process made this happen? cooling
30.
What is the name of the process that turned granite into sediment?
31.
What process turns sand into sandstone? weathering and erosion compacting and cementing
32.
What process can turn sandstone into quartzite? heat and pressure
33.
What turns quartzite into magma? melting
Click on ‘The Rock Cycle Diagram’. Explore the diagram by looking over the names of the rock types and clicking the images. When you are done, scroll to the bottom of the page, click on ‘Complete the Cycle’.
34.
When rocks are affected by weathering and erosion, they change into sediment.
35.
When sediment is compacted and cemented, it changes into sedimentary rock.
36.
When heat and pressure are applied to a sedimentary rock, it changes into metamorphic rock.
37.
When melting of a metamorphic rock occurs, it changes into magma
38.
When magma is cooled, it changes into igneous rock.
39.
To turn sediment in to sedimentary rock compaction and cementation must happen
40.
The interrelationship among the three rock types is called the rock cycle.