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science name
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| Question | Answer |
|---|---|
| Word | Meaning |
| crystals | Pieces of a mineral with sharp edges. |
| grain | Tiny, rounded piece of rock. |
| interlocking | When crystals fit together with no gaps between them. |
| minerals | The chemicals that rocks are made from. |
| mixture | Two or more different kinds of mineral that are not chemically joined to each other. |
| porous | Porous rocks can soak up water. |
| texture | The scientific word used to describe the shapes and sizes of the crystals or grains in a rock. |
| Word | Meaning |
| chemical weathering | When rocks are broken up or worn away by chemical reactions, usually with rainwater. |
| precipitate | Insoluble solid produced by mixing two solutions. |
| weathered | Rocks that have been worn away or broken up by chemical, biological or physical processes. |
| Word Meaning | |
| biological weathering | When rocks are worn away or broken up due to the activities of living things. For example, growing plant roots can split rocks apart. |
| erosion | The movement of loose and weathered rock. |
| expand | Get bigger. |
| freeze-thaw action | 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. |
| physical change | A change that does not involve new chemicals. Melting and freezing are samples of physical changes. |
| physical weathering | When rocks are worn away or broken up by physical processes such as changes in temperature. |
| Word Meaning | |
| abrasion | When rock fragments bump into each other and wear away. |
| deposits | When moving water drops rock fragments or grains. |
| sediment | Rock grains and fragments dropped on the bottom of a river, lake or sea. |
| transport | The movement of rock grains and fragments by wind or water. |
| Word | Meaning |
| coal | A fossil fuel made from the remains of plants. |
| extinct | A species that no longer exists. |
| fossils | Any sign of past life that has been preserved in a rock. |
| humus | Rotting organisms (especially leaves) which form part of the soil. |
| loam | A good soil containing both clay and sand particles. |
| natural gas | Fossil fuel formed from the remains of dead plants and animals that lived in the sea. |
| oil | v |
| salts | v |
| Word | Meaning |
| cementation | xleaving mineral salts behind which stick (cement) the rock pieces together. |
| cemented | Something that has been stuck together. |
| chalk | Soft white or grey rock formed from the shells of small sea animals. |
| compaction | When layers of sediment or rock are squashed by the weight of sediment above them. |
| deposits | When moving water drops rock fragments or grains. |
| fossil | The remains of a dead animal or plant that became trapped in layers of sediment and turned into rock. |
| grain | Tiny, rounded piece of rock |
| limestone | A sedimentary rock made from the shells of dead sea creatures consisting mainly of calcium carbonate. |
| minerals | The chemicals that rocks are made from. |
| porous Porous rocks can soak up water | |
| sandstone A sedimentary rock made from rounded grains of sand. | |
| sediment Rock grains and fragments dropped on the bottom of a river, lake or sea. | |
| sedimentary rock Rock formed from layers of sediment. | |
| shale A sedimentary rock | |
| transport The movement of rock grains and fragments by wind or water. | |
| weathered Rocks that have been worn away or broken up by chemical, biological or physical processes. | |
| 8Hb – Fossils and limestone | |
| Word Meaning | |
| carbonate-rich Something which contains a lot of compounds called carbonates. | |
| chalk Soft white or grey rock formed from the shells of small sea animals. | |
| fossil Any sign of past life that has been preserved in a rock. | |
| limestone A sedimentary rock made from the shells of dead sea creatures. | |
| oolite A type of limestone formed when water evaporates and leaves calcium carbonate behind. | |
| Word Meaning | |
| limestone A sedimentary rock made from the shells of dead sea creatures. | |
| magma Molten rock beneath the surface of the Earth. | |
| marble A metamorphic rock formed from limestone. | |
| metamorphic A word meaning ‘changed’. | |
| metamorphic rocks Rocks that have been formed by changing igneous or sedimentary rocks. | |
| mudstone A sedimentary rock made from mud. | |
| quartzite A metamorphic rock formed from sandstone. | |
| sandstone A sedimentary rock made from rounded grains of sand. | |
| slate A metamorphic rock with tiny crystals, formed from mudstone. | |
| 8Hd – A river of rock | |
| Word Meaning | |
| basalt An igneous rock with very tiny crystals. | |
| bonds Forces holding particles together. | |
| crust The solid rocks at the surface of the Earth. | |
| crystal Piece of mineral with sharp edges. | |
| granite An igneous rock with large crystals. | |
| igneous rock A rock formed when magma or lava cooled down and solidified. | |
| lava Molten rock that runs out of volcanoes. | |
| magma Molten rock beneath the surface of the Earth. | |
| mantle The part of the Earth below the crust. | |
| particles The tiny pieces that everything is made out of. | |
| volcano A place where lava flows out of the Earth. | |
| 8He – Rolling on | |
| Word Meaning | |
| plate The Earth’s crust is made of a series of tectonic plates. | |
| plate tectonics The theory that the Earth’s crust is made of a series of moving plates. | |
| rock cycle All the processes which form sedimentary igneous and metamorphic rocks linked together. |
Created by:
lidia.L
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