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All about Rocks

Welcome class 
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Slide 1: Tekstslide
Science5th Grade

In deze les zitten 13 slides, met interactieve quiz en tekstslides.

Onderdelen in deze les

Welcome class 

Slide 1 - Tekstslide

TODAY WE ARE LEARNING ALL ABOUT ROCKS 
AND HOW THEY ARE FORMED

Slide 2 - Tekstslide

What's a rock 
Im sure we all know what a rock is but do we know the actual scientific definition  rocks are the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans.

Slide 3 - Tekstslide

THERE ARE 3 MAIN TYPES OF ROCKS 
1. IGNEOUS ROCKS
2.SEDIMENTARY ROCKS
3.METAMORPHIC ROCKS

Slide 4 - Tekstslide

What are igneous rocks ?
Igneous rocks are rocks formed when hot magma crystalizes and solidifies they do not include any fossil deposits this is because  deep inside the earths crust erupts due to  the heat from these rocks they do however sometimes contain more that one mineral deposit  like Feldspars, or quartz 

Slide 5 - Tekstslide

There are two main types of igneous rocks Extrusive, Intrusive/ Plutonic 

Slide 6 - Tekstslide

Intrusive rocks 
Intrusive rocks are formed  from magma that has cooled and solidified inside the crust of the earth 
Intrusive rocks appear like crystals because of the slow cooling process , they also appear bigger, coarser and more grained than extrusive
    
There are many types of igneous intrusive rocks including  diabase ,diorite,  gabbro, granite, pegmatite

Slide 7 - Tekstslide

Extrusive Rock
Extrusive rock is formed when magma emerges from underground and cools on or near the Earths surface 
These rocks appear smaller and shinier than intrusive rocks because it cools faster 
Unlike intrusive rock they are fine grained and appear glassy and have small bubbles called vesicles from trapped lava 
Examples of extrusive rocks are Basalt, Pumice, Scoria, and vesicular basalt



 

Slide 8 - Tekstslide

Sedimentary 

Sedimentary rocks consist of fragments or pieces of rocks called sediments carried in rivers and deposited into lakes and oceans. When these sediments are buried they loose water and cement to form the rock some examples of  sedimentary rocks sandstone, limestone, and shale


sedimentary rocks can even form from the remains of plants or animals.The little pieces of materials  collect in low-lying areas like and around lakes, oceans, and deserts. They are then compressed by the weight of things on top and around them to turn them back to rocks 

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Metamorphic rocks
 Metamorphic rocks come from igneous or sedimentary rocks sometimes these sedimentary rocks and igneous rocks get trapped under the earth where there is a high temperature and  a lot of pressure due to this extreme pressure and temperature the rocks go through chemical changes called metamorphosis they then change to metamorphic rocks some examples of metamorphic rocks are  quartzite and marble

Slide 11 - Tekstslide

So now that we know all about the different type of rocks and how they formed we are going to do a quick fun activity I want everyone to take a few moments to create their own rock draw a picture of your rock friend and tell me what type of the three rocks we learned about it is and don't forget to name it 

Slide 12 - Tekstslide

WHAT IS ANOTHER NAME FOR AN IGNEOUS ROCK

Slide 13 - Open vraag