Rock Types By Tyler Schaad Science Education 9 th Grade Earth Science Begin!
Learning Objectives Students will be able to identify igneous, metamorphic, and sedimentary rocks. Next
Igneous Rocks Formed by cooling and solidifying lava or magma Can form above (extrusive) or below (intrusive) ground. Examples include obsidian, granite, and scoria. Next
Sedimentary Rocks Formed by the deposition of material on the surface or under water. Examples include sandstone, conglomerate, and breccia. Next
Metamorphic Rocks Form by the metamorphism of existing rocks. This change happens because of heat, pressure, or chemicals. Examples include shale, slate, and amphibolite. Next
Question 1 Which one of these is an igneous rock?
Correct! Great Job, Obsidian is an igneous rock. Click to Continue
Incorrect Sorry try again, this is a metamorphic rock. Back to Question
Incorrect Sorry try again, this is a sedimentary rock. Back to Question
Question 2 Which one of these is formed by deposition?
Incorrect Sorry this rock is formed by metamorphism. Back to Question
Incorrect Sorry this rock was formed by volcanic activity. Back to Question
Correct! Great Job, sandstone is a sedimentary rock. Continue
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