Types of Rocks

Introduction

WELCOME!

                               

 

                                                  

We will be learning about the different types of rocks. Did you know there were different kinds of rocks?! The three types of rocks are sedimentary, metamorphic and igneous. 

We're going to learn about what makes the three rocks different and how you can tell them apart, you will be comparing and contrasting the rocks. 

Have fun!

                          

   

Task

Today we will comparing and identifying the different types of rocks, when you are completed with this webquest you will be able to tell the different types of rocks apart. 

Your task will be to find three different types of rocks from the three we are researching, on the internet and we will examine by the characteristics of the rocks what kind they are. 

You will then compare and contrast your rocks and how they differ.

Gneiss and obsidian rock samples
Types of Rocks

Rocks are not all the same!

The three main types, or classes, of rock are sedimentary, metamorphic, andigneous and the differences among them have to do with how they are formed.

Sedimentary
Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material. Together, all these particles are called sediment. Gradually, the sediment accumulates in layers and over a long period of time hardens into rock. Generally, sedimentary rock is fairly soft and may break apart or crumble easily. You can often see sand, pebbles, or stones in the rock, and it is usually the only type that contains fossils.

Examples of this rock type include conglomerate and limestone.

Metamorphic
Metamorphic rocks are formed under the surface of the earth from the metamorphosis (change) that occurs due to intense heat and pressure (squeezing). The rocks that result from these processes often have ribbonlike layers and may have shiny crystals, formed by minerals growing slowly over time, on their surface.

Examples of this rock type include gneiss and marble.

Igneous
Igneous rocks are formed when magma (molten rock deep within the earth) cools and hardens. Sometimes the magma cools inside the earth, and other times it erupts onto the surface from volcanoes (in this case, it is called lava). When lava cools very quickly, no crystals form and the rock looks shiny and glasslike. Sometimes gas bubbles are trapped in the rock during the cooling process, leaving tiny holes and spaces in the rock.

Examples of this rock type include basalt and obsidian.
Process

                                        

Visit the websites below to brush up on your rock knowledge!

http://interactivesites.weebly.com/rocks-and-minerals.html

http://www.kidsdiscover.com/spotlight/rocks-and-minerals-for-kids/

http://www.kidsloverocks.com/html/types_of_rocks.html

After you have completed these games, make sure you have printed your score or completion page for credit.

Play the games on the sites, they will help you better understand the different types of rocks!

WATCH these fun videos on the different types Rocks!

https://www.youtube.com/watch?v=FnoHDRPJjkw

https://www.youtube.com/watch?v=NygkD8uATng

https://www.youtube.com/watch?v=-MSK3n5uNvg

Now look at the three rocks you have found online. What can you tell from their pictures? List two observations from each rock and state which kind of rock you believe it to be and why! Make sure you label your rock picture also as sedimentary, igneous or metamorphic and then label the number of your observation on the page with the rock.

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Evaluation

What will the teacher be looking for on your rock discoveries and how will you be graded?

Reseraching the rocks The student did the aquate amount of research when trying to identiy the rocks questioned. There were sources used. Student did not use any sources when identifying the rocks.
The characteristics Students documented why the rocks were seleted in the group they were classified as. There was detailed reasoning and a blatant understanding of the rock charcateristics in the group. Student put little to no effort into classifying the rocsk. Generic statements were made and little understanding of  the rock charcateristics were shown
What did you learn? The student shows that they have a good understadning of the new topic Little to no proof of understanding of the lesson is given. 
Conclusion

CONGRATULATIONS!!!!! You made it through this lesson and now know something new about rocks! 

Below, please write three new things you learned today or from this unit!

REMEMBER......YOU ROCK ;)

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Teacher Page

common core standards related

ESS3.C Human impacts on Earth Systems-Societal activities have had major effects on the land, ocean, atmosphere and even outer space; Students describe things society does to protect Earth’s resources and environments.