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Thursday, August 16, 2018

volcanic rocks

Today I am going to discuss different types of volcanic rocks. Some types of volcanic rocks that i already knew about were obsidian, basalt, pumice, lava bombs and scoria. Volcanic rocks are formed by volcanic eruptions. Lava bombs can be formed by a volcano erupting where lava goes up into the air forming into a lava bomb. You can find pumice in or on water because pumice can float. Some interesting facts about pumice are that they are light-coloured and an igneous rock. An igneous rock means for or produced by the action of fire or resembling to fire. Obsidian is a type of igneous rock that feels like a glass. You can make sharp blades and tools with obsidian rocks.   Lava bombs are rocks that are named by its shape and lava bombs aren’t actually bombs because they don’t explode. Lava bombs are called lava bombs because they are formed when lava goes up into the air and its shape is formed by mixing with the air before it lands on the ground or in the water. You will rarely find volcanic rocks on grass because volcanic rocks actually lands in or on water, volcanic rocks is mostly found in or on water because they can come of and land on or in water.