1.
biosphere: area of earth where life is found, and includes the air, land and water
2.
carbon cycle: process in an ecosystem in which producers take in carbon dioxide from the atmosphere durin photosynthesis and consumers, having eaten producers, release carbon into the atmosphere as carbon dioxide
3.
chemical change: a change in matter that produces one or more new substances
4.
energy: the ability to do work
5.
energy comes into the ecosystem: comes into the ecosystem in the form of electromagnetic radiation from the sun - - sunlight.
6.
energy leaves the ecosystem: in the form of heat and radiates out into space
7.
nutrients: are things a body can't make such as carbon, nitrogen and phosphorous
8.
physical change: when matter goes from one state to another
9.
steady state: biosphere requires constant supple of energy, because the earth releases as much energy as it absorbs it is called
10.
the nitrogen cycle: Nitrogen is a gas. Bacteria in roots of plants fix nitrogen from the atmosphere in the form of amonia and nitrates, these are taken up by plants to make amino acids and proteins, Plants and animals die, bacteria break down the nitrogen-containing compounds and release nitrogen gas back in atmosphere
11.
the phosphorous cycle: back into making DNA<ATP,teeth and bones, posphorous is found in rocks and in form of phosphates. Water erodes the rocks, releasing the phosphates into the environment and is absorbed by plants, and passed through the food web
