Soil and Rock Unit Word Scramble
T P H R M M A C E O I
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| Question | Answer |
| A rock formed when another rock is changed by heat and pressure deep under Earth's surface. | Metamorphic |
| The process when sediment is glued together when minerals crystalize | Cementation |
| What are the three major characteristics of sedimentary rocks | layers, fossils, & visible sediments |
| What are the 4 stages that form sedimentary rock | Erosion, Deposition, Compaction, & Cementation |
| A type of rock that has been formed from cooling magma or lava | Igneous |
| The process when sediment is carried away | Erosion |
| Why is it important for farmers to practice soil conservation methods? | All living things depend on soil, there is a limited supply of good soil, and it takes a long time for soil to form. |
| How does B horizon form? | Particles are washed down from the A-Horizon |
| A type of rock made from sediments that have been glued together. | Sedimentary |
| The process when sediment settles in a new place | Deposition |
| a chemical reaction in which oxygen combines with another substance; for example, when metal rusts | Oxidation |
| Plowing only when necessary so that soil stays in place | Conservation Plowing |
| What are rocks made of? | They are a combination of different minerals and other sediments |
| When rocks are dissolved or the composition is changed | Chemical Weathering |
| The parent rock in which all soil comes from | Bedrock |
| A soil conservation method farmers use to plow fields along the curves of a sloap or hillsides | Contour Plowing |
| Soil with very small particles that retain/hold onto water | Clay |
| The property of soil that allows water to flow easily through it | Permeable |
| The practice of planting different crops each year | Crop Rotation |
| The largest particle size in soil | Sand |
| The area in the plains states that experienced 10 years of drought, wind, & soil erosion in the 1930's | Dust Bowl |
| What is the process in which rocks can be changed to become other types of rocks | The Rock Cycle |
| A mixture of weathered rock particles, mixed with air, water, & organic material. | Soil |
| a type of mechanical weathering in which water gets into cracks or joints in a rock, then freezes and expands, pushing the rock apart | Ice Wedging |
| a type of mechanical weathering caused by the scraping and scratching of rocks by loose particles that are transported over the rocks by wind, water, glaciers, etc. | Abrasion |
| The layers of soil that differ in color and texture from the layers above or below it | Soil Horizons |
| The process when rock is physically broken down into smaller pieces | Mechanical Weathering |
| The physical or chemical breakdown of rocks into smaller sized pieces | Weathering |
| The upper layer of soil rich in nutrients and organic material | Topsoil |
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6thGradeScience
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