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sci#10#hy
| Term | Definition |
|---|---|
| Universe | The huge space which contains all of the matter and energy in existence |
| Big Bang Theory | The theory that the universe stated in a big explosion from a single point |
| Steady State Theory | The theory that the universe has always existed and matter is being created all the time - 1950s and 60s |
| Cosmology | The scientific study of the theories about the history and futures of the universe |
| Organisms | Living things |
| Charles Darwin | Created the theory of evolution and explained it through the mechanism of natural selection |
| Evolution | The slow change in population of living things over many generations |
| Comparative Antomy | The study of similarities and differences in body structures |
| Comparative Embryology | Study of embryos |
| Comparative DNA | Shows relations between different species |
| Fossils | The remains or impressions of living things, mostly found in rock |
| Geographical Isolation | The natural arrangements of plants and animals in particular regions |
| Natural Selection | When only the organism's best adapted to their environment will survive and transmit their genes to their offspring |
| Hominid | Early human-like fossils that walked upright on 2 legs and were more like humans than apes |
| Homo Sapiens | The scientific term for humans |
| Lamarck's Theory | Use it or lose it |
| Motion | Movement |
| Distance | How far it is between 2 points |
| Time | How long it takes between 2 points |
| Average Speed | The total distance travelled divided by the time taken |
| Speed | How quickly an object is moving |
| Velocity | Speed in a given direction |
| Instantaneous Speed | The speed of something the instant you look at it |
| Mass | The amount of matter in something |
| Weight | The force gravity pulling on a mass |
| Force | A push, pull or twist applied to an object |
| Acceleration | The rate at which an object changes its speed |
| Net Force | The direction sum of all forces acting on an object |
| Friction | The rubbing force that slows moving objects |
| Ticker Timer | A device that produces a series of dots on paper |
| Inertia | The tendency of mass and velocity |
| Equation for speed | S=d/t |
| Equation for force | f=ma |
| Newtons 1st Law | Law of Inertia |
| Newtons 2nd Law | F=ma |
| Newtons 3rd Law | Action/Reaction |
Created by:
Chris497
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