click below
click below
Normal Size Small Size show me how
chapter 3 - lesson 3
| Term | Definition |
|---|---|
| Crust | is a thin layer of relatively cool rock that forms Earth's outer skin both on land and in the ocean |
| mantle | below the crust ; its a very hot but mostly solid rock |
| core | Earth's outer core is made of molten metals such as iron and nickel ; the layer of earth below the mantle |
| tectonic plates | one of the rigid layers of the lithosphere |
| landforms | features such as mountains , islands , and continents formed by the collisions and separations of tectonic plates |
| deposition | the movement and accumulation of erosion |
| evaporation | the conversion of a substance from liquid to gas |
| transpiration | the release of water vapor by plants through their leaves |
| precipitation | water returns from the atmosphere to Earth's surface such as rain or snow |
| condensation | a change in state form from a gas to liquid |
| aquifers | aquifers are layers of rock and soil that hold ground water |
| groundwater | fresh water found from underground |
| law of conservation of matter | it explains why the amount of matter in the enviroment stays the same as it flows through matter cycles , such as the water cycle |
| nutrients | are matter that organisms require for their life process |
| biochemicals cycle - nutrients cycle | nutrients circulate endlessly throughout the enviroment in complex cycles |
| primary producers | are organisms including plants and algae that produce ther own food |
| photosynthesis | producers pull carbon dioxide out of their environment and combine it with water in the presence of sunlight |
| consumers | are organisms mainly animals , that must eat other organisms to obtain nutrients |
| decomposers | are organisms such as bacteria and fungi that break down wastes and dead organisms |
| cellular respiration | is the process by which organisms use oxygen to release the chemical energy of sugars and C02 |
| eutrophication | the addition of phosphorus to bodies of water can lead to an overgrowth of producers |
| Nitrogen fixation | is the conversation of nitrogen gas into ammonia |