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Did you know there are three types of rock on this planet? In Rocks for Kids, you will learn all about how different kinds of rocks form. You will discover the properties and traits that make these rocks unique. And maybe you will find that being a geologist, a scientist that studies rocks, would totally rock!
Your kids will learn interesting facts about sedimentary rocks, metamorphic rocks, and igneous rocks. For instance, did you know that fossils are really only found in sedimentary rocks? You wouldn't find a dinosaur bone in a slab of marble. Speaking of marble, marble is a type of metamorphic rock. Metamorphic rocks form with really high pressure and heat beneath the earth's surface.
Igneous rocks actually divide further into two categories. There are intrusive (or plutonic) igneous rocks and extrusive igneous rocks. Intrusive rocks form when magma cools slowly inside the earth. An example of an intrusive igneous rock is granite. Extrusive igneous rocks form when lava cools really quickly. If lava cools fast enough, it creates obsidian.
We hope you and your student(s) enjoyed learning about rocks and geology! If you want to learn even more, head over to our website and download one of our many free lesson plans about different kinds of rocks, full of activities, worksheets, and more!
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What you will learn in Rocks for Kids:
0:00 Introduction to geology, rocks, and geologists
1:51 Three types of rocks
2:01 Sedimentary rocks and how they form
3:17 Metamorphic rocks and how they form
4:29 Igneous rocks and how they form
5:29 Intrusive (plutonic) and extrusive igneous rocks
6:44 Review of rocks and geology
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