GENERAL SCIENCE

• Hypothesis: an assumption or idea of a topic that is tested through experiment
• IV - a variable that can be manipulated to have effect on the dependent variable
• DV - what is affected by the independent variable
• Scientific law - repeated experimental observation
• model - aids in the visualization of occurences and objects that cannot be observed directly
• Lithosphere - solid part and outer part of the earth
• Hydrosphere - the amount of water on a planet
• atmosphere - air or gases
• biosphere - living and breathing things on earth
• Igneous rocks - formed from the cooling of magma
• Sedimentary rocks - formed from pre exisiting rocks of once living organisms
• Metamorphic rocks - change of environment (climate change )
• weathering - breakdown of rocks at the earths surface, by the action of rainwater
• erosion - earthen materials worn away by natural forces such as wind or water
• Lithification - unconsolidated materials are converted into coherent solid rock
• Meteorology - process and phenomena of the atmosphere, as a means of forecasting weather
• weather - state of the atmosphere
• climate - weather conditions in a specific region
• trotosphere - closer to the earths surface, contains 75% of the atmosphere mass
• stratosphere - layer above trotosphere warmer at the top than the bottom
• mesosphere - above stratosphere cold layer where temperature decreases with increasing altitude
• thermosphere - above mesosphere hot layer where temperature increases with increasing altitude
• exosphere - least external known layer of the atmosphere
• Ecology - relations and interactions between organisms and their environment
• biotic - all living factors in the environment
• abiotic - nonliving factors that are essential to living organisms
• population - number of organisms that live in a geographic area
• community - a group of sort
• ecosystem - function together as an unit
• biome - area of the planet that can be classified as according to the plants and animals
• nebular theory - formulation of a solar system from a nebula cloud
• ptolemaic theory - earth layed at the center of the universe
• Copernican theory - published 1543 - the earth and planets rotated around the sun
• Asteroids - a rocky object in space
• Meteoroid - chunk of rock that flows therough space ccomet
• Solar eclipse - when the moon passes between earth and the sun
• Lunar eclipse - when the full moon passes