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Learning About Minerals, Igneous Rocks, Sedimentary Rocks, and Metamorphic Rocks

Posted by on March 9, 2012

My teacher has told me to tell you about minerals, Igneous rocks, Sedimentary rocks, and Metamorphic rocks from my science book, so here it is.

page 244-245

Do you know what minerals are? A mineral is a solid, nonliving substance that occurs naturally in rocks or in the ground. Here are some examples of minerals. Hornblende is one of a group of hard green, black, and brown minerals. Silvery galena is a common mineral from which we get lead. Copper is produced from the mineral chalcopyrite. Rock can be made of many minerals or of one mineral with different- sized grains. Can you believe that there are more than 4,000 kinds of minerals?! It’s hard to believe but it’s true. Many kinds of minerals are alike. Gypsum and calcite may look alike but gypsum is easier to scratch. Now let’s talk about Igneous rocks!

page 246

Do you know how Igneous rocks form? Igneous rocks form when melted rock cools and hardens. Igneous rocks usually form from volcanoes because volcanoes have magma and lava. Here are some Igneous rocks: Basalt, Rhyolite, Gabbro, Diorite, and Granite. Deep inside the earth, it is so hot that some rock is liquid, like syrup. This melted rock is magma.¬†Magma is inside earths crust. Now let’s ¬†talk about Sedimentary rocks.

page 247-248

Sedimentary rocks form from sediment. Sediment is pieces of rock that have been broken down and moved. Sedimentary rocks are very common on earths surface. For instance, you could see one in your backyard or in a park. You could see them almost anywhere. Another group of rock is metamorphic rock. Metamorphic rock is rock that has changed from another type of rock. High temperature can change one type of rock into metamorphic rock.

That’s just about all I wanted to tell you. Hope you liked it!

3 Responses to Learning About Minerals, Igneous Rocks, Sedimentary Rocks, and Metamorphic Rocks

  1. PopPopStan

    Wow Elior I certainly have a greater understanding about rocks and minerals after reading your report. I never knew that there are more then 4,000 kinds of minerals. Elior when I was your age I enjoyed going exploring for rocks and looking up the types of rocks I found to learn about them. Your report helped me to remember all the beautiful colors of rocks and minerals. The vivid deep hard greens, the beautiful silvers and blacks and golds. I remember my teachers teaching me about Igneous rocks and was able to relearn about them from your report. It is always good to learn new things and fun to relearn old things. Elior thank you for doing such a wonderful job of writing such a detailed report, keep up the good work I am very proud of you.

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