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The Planet Earth and
Science Key Words
Term | Definition |
---|---|
Metamorphic Rock | A type of rock which has been charged by extreme heat or pressure. |
A Year | The time taken by earth to make one revolution around the sun which takes the period of 365 days |
Weathering | Wear away or change the appearance or texture of something by long exposure to the atmosphere. |
Water Cycle | The cycle of process by which water circulates between the earth's oceans, atmosphere and land. |
Sedimentary Rock | Rock that has formed through the deposition and solid faction of sediment, especially sedimentary transported by water eg. lakes, ice or wind. |
Pseudo-Science | A collection of beliefs or practices mistakenly regarded as being based on scientific methods. |
Plate Tectonics | A theory explaining the structure of the earths crust and many associated phenomena. |
Orbit | The regular repeated elliptical course of a celestial object or spacecraft around a star or planet. |
Mnemonic | A system such as a pattern of letters, ideas or associations which assists in remembering something. |
Magma | Hot fluid of semi-fluid material below or within the earths rust from which lava and other igneous rock is formed on cooling. |
Igneous Rock | Is formed through the cooling and solidification of magma or lava. |
Biosphere | The region of the surface and atmosphere of the earth or another planet occupied by living organisms. |
Geosphere | Any of the almost spherical concentric region of the earth and it's atmosphere especially the lithosphere. |
Astronomy | The branch of science which deals with the celestial objects, space and the physical universe as a whole/ |
Fossil Fuel | A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. |
Incident Ray | An incident ray of light that strikes a surface eg. a rare view mirror |
Constellation | A group of stars in a recognizable pattern that is traditionally named after it's apparent form or identified with a mythological figure. |
Lunar Eclipse | An eclipse in which the moon appears darkened as it passes into the earth's shadow. |
Hydrosphere | All the waters on earth's surface, such as oceans, lakes and sometimes clouds. |
Atmosphere | The envelope of gasses surrounding earth or another planet. |
Acid Rain | Rainfall made so acidic that in causes environmental harm. The main cause is the industrial burning of coal and other fossil fuel. |
Gondwanaland | A vast continental area which is believed to have existed in the southern hemisphere and to have resulted from the break u of Pangaea and Mesozoic. |