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The formation of soil happens over an extended period of time, often more than 1000 years. Soil is formed from the weathering (breaking down) of rocks and minerals. The surface rocks break down into smaller pieces and is then mixed with organic matter (decaying plants and animals).
Parent Material Parent material is basically the earthen materials that make up the soil .
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism , which means "change in form".
Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah , USA Sedimentary rocks are types of rock that are formed by the deposition of material at the Earth 's surface and within bodies of water.
A list of all unique rock types recognized by petrologists .
Igneous rock (derived from the Latin word ignis meaning fire) is one of the three main rock types , the others being sedimentary and metamorphic rock .
Summary: Through playing the Rock Cycle Game students will gain an understanding of the cycles that form metamorphic, sedimentary and igneous rocks.
| Instructional Objective | Learners & Context | Object of Game | Game Materials |
S oil covers most of the land surface of the earth in a thin layer, ranging in thickness from a few centimetres to several metres.
-- home -- environment -- issues -- Rev 20051121,20060712,20070211,
by Rachel M.
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No matter how much you know, there is always something new to learn about science. While your college courses may cover the basics, you can get a more in-depth look at a wide variety of topics from Internet resources such as these great documentaries.
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