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St marys music schoo
S2 term 1 Chemistry
| Question | Answer |
|---|---|
| What are the three classes of rocks? | Sedimentary, Metamorphic, Igneous |
| In the process of Sedimentary rocks forming, some existing rocks gets broken down to small pieces. What is this process called, and what are those small pieces called | Weathering; Sediments |
| What are the three types of weathering | Physical, chemical, biological |
| What causes Physical Weathering | Temperature Change |
| Name and example of Chemical weathering | Acid rain reacts with the rocks |
| What causes Biological Weathering | When plants or animals break rocks |
| What is the process or weathering and transport called | Erosion |
| What is deposition | When the sediments settle in a place (e.g. bottom of a sea) |
| What is compaction | Compaction is the process by which sediments are pressed together under the weight of overlying layers |
| What is cementation | Cementation is the geological process where dissolved minerals precipitate in the spaces between sediment grains, binding them together to form solid sedimentary rock. |
| Name four sedimentary rocks | Dolostone, Limestone, Conglormerate, sandstone |
| What are igneous rocks | Cooled and solified Molten Rock |
| What are molten rock called when in surface of earth; in the underground | lava;magma |
| What is the difference in crystal size depending on whether the molten rock is solified inside or outside the earth's surface | Inside - large crystal Outside - Small crystal |
| Name four Igneous rocks | Obsidian, Granite, Gabbro, Basalt |
| What are minerals | Chemicals in rocks |
| Can minerals be either compounds or elements or can only be one of those | Yes |
| Are all minerals crystals? | Yes |
| Why are minerals crystals? | They are arranged in a repeating geometric pattern |
| Does minerals contain carbon? | No |
| What is a substance that is inorganic, and is naturally occurring | Minerals |
| Name a mineral and a product that can be made using the mineral | Gypsum is used for making plater boards. |
| What are ores | A rock which contains a high concentration of valuable minerals |
| Which part of the earth are most unreactive metals found | the crust |
| What fuel is coal turned into in the blast furnace | coke |
| What makes carbon monoxide | coke |
| What does the carbon monoxide do | separate oxygen from iron |
| When metals are too reactive to be seperated by carbon, what is used | electrolysis |
| Name two ways of extracting ores | Carbon reduction or eletrolysis |
| Why are reactive metals harder to be extracted | A reactive metal really likes being combined with other elements, especially oxygen. |
| what are fossil fuels and how are they made | They are natural resources and are remains of plants and animals that died millions of years ago. |
| How does the remains of dead animals and plants turn into fossil fuels | 🌿 Dead plants and animals die and get buried under layers of mud, sand, and rock. As more layers build up, they are squeezed by the weight above them. The heat and pressure turns it into fossil fuels |
| What are hydrocarbons | A hydrocarbon is a substance made only of hydrogen and carbon atoms. |
| In a fractional column, is it hotter near the top or bottom | bottom |
| What are fractions | different substances which the crude oil can be spilt into |
| What elements make up crude oil | Carbon and hydrogen |
| Name the fractions obtained from crude oil | Refinery gases, Gasoline: Also known as petrol, Naphtha Kerosene, Diesel, Fuel oil, Residue - like Bitumen |
| Name one specific fraction and give a product made using that fraction | Kerosene - Aircraft Fuel |
Created by:
Sumleung
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