A “ROCK”ing Webquest

Rocks Webquest Directions: Answer the following questions on a separate sheet of paper. You should use the websitesprovided for each question (the underlined titles are hotlinks).

  1. Introduction: What do you think is the purpose of this activity?

______

______

*Click on “Begin with Types of Rocks”

  1. Types of Rocks: Fill in the charts according to the information found on this page.

Types of Rocks / Summarize How It Is Formed / Two Example Names
Key Characteristics / What Type of Rock Is It Found In?
Crystals
Small, flat surfaces that are shiny or sparkly, like tiny mirrors.
Fossils
Imprints of leaves, shells, insects, or other items in the rock.
Gas bubbles
"Holes," like Swiss cheese, in the rock.
Glassy surface
A shiny and smooth surface, like colored glass.
Ribbon-like layers
Straight or wavy stripes of different colors in the rock.
Sand or pebbles
Individual stones, pebbles, or sand grains visible in the rock.

*Click on “Next: Start Your Rock Collection”

  1. Start Your Rock Collection: Click begin and fill in the information below.

Basalt / Limestone / Marble
This rock has ______and they form when _____ from a volcano contains gases that escapes from the rock as the lava cools. It is usually ______in color and is the most common rock type in Earth’s crust and makes up most of the ______. It is a ______rock. / Most of the time, you can see ______in this rock. Most of these formed when ______and the skeletons of ______were pushed into the sea floor along with other sediment. It is often found near ______and ______. It is a ______rock. / This rock has ______and is formed when ______is changed because of intense ______and ______for a long period of time. It is found in ______and quarries (______dug into the Earth). It is used in ______and ______. It is a ______rock.
Conglomerate / Obsidian / Gneiss
It is made of ______, ______, and smaller particles pressed together by the action of waves or water. Finding this rock means that a ______or ______once existed in that location. It is a ______rock. / It has a ______surface, which is created from ______that cools so ______that no crystals could have time to form. It can be found near ______and was often used to make ______for weapons. It is a ______rock. / It has ______layers. It is formed when granite is squeezed and heated for a long period of time within Earth’s ______. It is a ______rock.

*Click on “Identify Rock Types”

  1. Identify Rock Types: Your Score =______
  1. How Rocks Change:
  2. Before the melting point is reached, what type of rock forms when extreme heat and pressure is added? ______
  3. Another name for change is ______.

-Play the animation.

*Click on “Next”

  1. Where is it hot enough for rocks to melt? ______
  1. When temperatures reach between ______and ______degrees Celsius, rocks melt into ______.
  2. Magma is known as ______.
  3. A rock that cools from magma is called a(n) ______rock.
  4. What is an extrusive igneous rock? ______
  5. What is an intrusive igneous rock? ______

______

-Play the animation.

*Click on “Next”

9. Another name for weathering is ______.

10. Another name for erosion is ______.

11. Compacting means ______.

12. ______means hardening.

13. Compaction and cementation leads to the formation of ______rock.

-Play the animation.

*Click on “Transform the Rock”

  1. Transform the Rock: Your Score = ______
  1. The Rock Cycle Diagram:
  2. Forces inside the Earth bring them closer to the surface (where they are weathered, eroded, and compacted) and forces on the earth sink them back down (where they are heated, pressed, and melted).
  3. Elements that make up rocks are never ______or ______, but they are constantly being ______.

-Explore the diagram. Fill in the processes on your diagram.

Type of Rock / Three Examples of Rocks
Igneous
Sedimentary
Metamorphic

*Click on “Complete the Cycle” and see if you can name the different parts of the rock cycle.

  1. Your Score = ______/10

Test Your Skills: YOU WILL GET A CLASSWORK GRADE FOR THE NEXT QUIZ! TAKE YOUR TIME AND DO YOUR

WebQuest Round 2: Click on the hyperlinks in blue to access the needed websites. You will write the answers to the questions on your OWN paper.

Rock Cycle

1. What are the three main types of rocks?

2. How does a sedimentary rock turn into a metamorphic rock?

3. How does an igneous rock turn into a metamorphic rock?

4. How do metamorphic rocks change into sedimentary rocks?

5. How do igneous rocks change into sedimentary rocks?

6. What is the beginning of the rock cycle? The end?

View this Rock Cycle animation

7. Write a description of what you see.

8. What is causing the magma to rise?

9. What is causing weathering and erosion of rock?

10. What begins to form as sediment is deposited in the ocean?

Igneous Rocks You will need to searchtwo types of igneous rocks

12. There are two types of igneous rocks. Which type is formed underground, by magma?

13. Which type is formed above ground, by lava?

14. Why do rocks that form inside the ground usually have larger minerals?

Mystery Rocks

14. Look at Photo B. How do you suppose those rocks were formed?

Sedimentary Rocks – Watch this video and fill in the chart below:

Type of Sedimentary Rock / How it forms / Unique Features
Detrital
Sedimentary
Rocks
Chemical
Sedimentary
Rocks

Metamorphic Rocks -

Fill in the chart

Type of Metamoporphic Rock / How it forms / Unique Features
Nonfoliated
Metamorphic
Rocks
Foliated
Metamorphic
Rocks