Rocks, Weathering and Erosion
Terms
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- Which type of rock is changed (morphed) into another type of rock by heat and pressure?
- metamorphic
- What are fossils, and in what type of rock can they be found?
- Fossils are plants, animals and insects, which lived thousands of years ago and have died and been trapped and buried in sedimentary rock.
- Rocks move and change on the surface of the earth because of _________and__________.
- weathering, erosion
- Crystals are formed when Igneous rocks are cooled________.
- slowly
- Rocks move and change over time because of _______and_________inside the earth.
- heat, pressure
- Name,and draw, in order, from top to bottom, the three layers of rocks found on and in the earth.
-
1. Igneous (found on the earth's surface as well as in magma),
2. Sedimentary,
3. Metamorphic - What can be moved by weather and wind and deposited as sediment?
- weathered rock
- Layers of sediments from the earth's surface that are cemented together, until the bottom layers slowly turn to rock are called________rocks.
- sedimentary
- _________and______are the wearing away of the earth's surface.
- weathering, erosion
- _________rocks are formed when Igneous rocks are erupted to the earth, surface and cooled________.
- rapidly
- Define the terms Weathering and Erosion.
- The wearing away, breaking down of the earth's crust (surface).
- Which type of rock is called "fire rock" and is formed from melting and cooling lava and magma?
- igneous
- Give an example of the process called weathering and erosion.
- Weathering and erosion are the wearing away of sediments on the surface of the earth. An example of the process of weathering and erosion is, as rain, snow and wind hit the surface of the earth, over time they cause the crust of the earth to break down (wear away) into small particles called sediments.
- Which two layers of the earth are composed mostly of rocky material ?
- crust and mantle
- ________and _______are greatly increased in the depths of the earth.
- heat (temperature), pressure