earth’s rocks
DESCRIPTION
Earth’s Rocks. What are rocks?. Rock – any naturally formed solid in the crust made up of 1 or more minerals May have a mixture of properties Identification Name the minerals it contains Color Density Texture – based on how they were formed. Igneous Rocks. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/1.jpg)
Earth’s Rocks
![Page 2: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/2.jpg)
What are rocks?
• Rock – any naturally formed solid in the crust made up of 1 or more minerals
• May have a mixture of properties• Identification– Name the minerals it contains– Color– Density– Texture – based on how they were formed
![Page 3: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/3.jpg)
Igneous Rocks
• Form when melted rock material cools and hardens
• Lava can also cool to form igneous rocks• Used in monuments• Obsidian – solid piece of volcanic glass• Ex. Obsidian, basalt, granite, gabbro
![Page 4: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/4.jpg)
Uses for Igneous Rock
Gravestones
Buildings
Countertops
Tools
![Page 5: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/5.jpg)
Sedimentary Rocks
• Made of small bits of matter joined together– Weathered rocks, shells, remains of living things
• Formed when sediment is compacted or cemented together
• Ex. Shale, siltstone, sandstone, conglomerate, limestone, conquina, bituminous (coal)
![Page 6: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/6.jpg)
Uses for Sedimentary Rock
• Buildings• Monuments• Park Benches• Cement and concrete• Contain fossils or remains of living things of
the past• Almost all fossils are found in sedimentary rock• Energy
![Page 7: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/7.jpg)
Metamorphic Rocks
• A rock formed under heat and pressure from another kind of rock
• The original rock stays solid• They have new useful properties• Slate is used in roofing shingles• Marble for countertops, floors, and statues• Anthracite is a form of hard coal
![Page 8: Earth’s Rocks](https://reader034.vdocuments.site/reader034/viewer/2022042822/56815fd3550346895dced2ee/html5/thumbnails/8.jpg)
Uses for Metamorphic Rock
Buildings
Countertops
Roofing shingles
Energy