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7H rocks
| Question | Answer |
|---|---|
| What are rocks made out of? | Rocks are made out of different grains. |
| What do rocks have other than grains? | Ricks have mixtures of different minerals. |
| The chemicals in rocks, what are they called? | They are called minerals. |
| The grains in rocks can be in__________ and___________ | different sizes and shapes. |
| The combination of sizes and shapes of grains are called________ | Are called the texture of the rock. |
| What is interlocking? | interlocking is the grains in the rock all fit together with no gaps. |
| Interlocking grains are sometimes called_________ | crystals. |
| How are igneous rocks made and give one example of an igneous rock. | Igneous rocks are made when molten rock cools down. for example Granite. |
| Explain how metamorphic rocks are made and sedimentary rokcks are made? | Metamorphic rocks fprm when existing rocks are heated or squashed. Sedimnetary rocks are formed when tiny grains of existing rocks become stuck together. |
| What is porous? | porous is when some of the rocks has rounded grains that can absorb water because it can get into the gaps between the grains. |
| What is permeable? | Permeable is when water can run through them. |
| What does rain contain? | It contains dissolved gases from the air that make it slightly acidic. |
| What happens when rain falls onto rocks? | It is when rain fall onto rocks it reacts with the minerals in that rock. |
| What happens if its hot for the minerals in the rock? | They expand(get bigger) |
| What happens if minerals in the rock cool down? | They contract(get smaller) |
| Where do physical weathering usually take place? | They normally take place in deserts and often causes sheets of rocks to peel off. |
| What is freeze-thaw action? | It is a type of physical weathering that happens when water gets into a crack in a rock and freezes. The freezing water expands and makes the crack bigger. |
| What is biological weathering? | it is when rocks are worn away or broken up due to the activities of living things. |
| If rocks can fall into a stream or river, they can get___________ | Transported(carried away) |
| What happens to abrasion? | They move by the water, the rock fragments knock against each other and wear away. |
| What is when some of the bits of rock or sand in streams or river called? | It is called sediment. |
| What are Glaciers? | Glaciers are rivers made of ice. |
| What is deposited? | It is when sediments are carried by water or ice when the water slows down or when the ice melts. |
| What is compaction? | Compaction is when it squeezes the water out from the gaps between the grains. |
| Why are they called fossil fuels? | Because they were formed by the remain of plants and animals. |
| How is Coal formed? | Coal was formed when swamps were buried by sediments. |
| How are Oil and natural gas formed? | They are formed when tiny sea plantts and animals became buried by sediments. |
Created by:
sofiabaraniak
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