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 |