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Dynamic Earth
| Question | Answer |
|---|---|
| A rock that is made out of sand, shells and other materials. It consists of layers and often has fossils found in them. | Sedimentary |
| A rock that is made beneath the surface of the Earth. It has ribbon-like layers caused by heat. Some of these rocks have crystals on them. | Metamorphic |
| A rock made from the cooling of lava. If the lava cools quickly, the rock looks smooth and shiny. If the lava cools slowly, the rock has plenty of texture. | Igneous |
| A type of Igneous rock that has SMALL crystals on it. This is because the lava that forms the rock is cooled QUICKLY. | Extrusive Igneous rock (such as Basalt) |
| A type of Igneous rock that has LARGE crystals on it. This is because the lava that forms the rock is cooled SLOWLY. | Intrusive Igneous rock (such as Granite) |
| A compound containing a metal. These are found in the Earths crust. | Metal ores |
| A metal ore containing the element iron. | Haematite |
| These metals can be extracted from their ore by heating with carbon. | Zinc, Iron, Lead and Copper |
| These metals can be extracted from their ore using electrolysis | Potassium, Sodium, Calcium, Magnesium and Aluminium |
| These metals are known as Native metals. | Gold and Silver |
| The use of electricity to split up compounds into elements (separate the metal from its ore). | Electrolysis |
| Metals form _______________ ions. | Positive |
| Non-metals form ________________ ions. | Negative |
| Fossil fuels are made from decayed and fossilised remains of plants and animals that lived millions of years ago. Fossil fuels are a _____________ resource. | Finite |
| The process by which crude oil is separated into its different, more useful, fractions. | Fractional distillation. |
| A type of fossil fuel that was formed from sea organisms that died millions of years ago. They settled on the ocean floor and decomposed at various pressures with sand and salt. | Crude oil |
| The products of the combustion of fossil fuels | Carbon dioxide and water |
| Carbon dioxide is removed from our atmosphere using this process. | Photosynthesis |
| Too much carbon dioxide in our atmosphere has resulted in _____________ _______________. | Global warming |
| Two gases that contribute to acid rain | Sulphur dioxide and Nitrogen Dioxide |
| This substance enters water systems and sinks into the ground. It can make water toxic to aquatic animals. It can also harm forests by damaging trees' leaves. | Acid Rain |
| True or False? In a fractionating column, smaller molecules rise farther up the column than larger molecules before they condense back into a liquid. | True |
Created by:
SDadgostar
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