Ch 3 vocab

Matter
any material that has mass
Atom
basic unit of matter
Element
centeral core of an atom
Molecule
combination of two or more atoms
Compound
substance combing atoms of two or more different elements
Hydrocarbon
organic compound combining hydrogen and carbon
Solution
mixture in which all the ingredients are evenly distributed
Macromolecule
large organic molecule
Protein
organic compound made up of carbon oxygen hydrogen nitrogen and sometimes sulfur
nucleic acid
macromolecule that carries hereditary information
carbohydrate
organic compound consists of atoms of carbon hydrogen and oxygen
lipid
chemicaly diverse compound that does not dissolve in water
pH
measure of the acidity or alkalinity of a solution
feedback loop
circular loop of feed back
erosion
removal of soil by water wind ice or gravity
geosphere
all of the rock at and below earths surface
lithosphere
outer most layer of earths geosphere
biosphere
earth and all of its organisms and enviorments
hydrosphere
all of the water on earth
crust
thin outer most layer of earths outer core
mantle
layer of very hot but ,ostly soild rock beneath earths crust
core
layer below the mantle
tectonic plates
one of the rigid layers of the lithosphere
landform
mountain island or continent formed by collision of tectonic plates
condensation
change in state from a vapor to a liquid
aquifer
sponge like formation of rock sand or gravel that holds water
law of conservation of matter
principle matter can change but never be destoyed
nutrient
matter that organisms need to carry out their life processes
biogeochemical cycle
circulation of nutriens through the atmosphere also called nutrient cycle
primary producers
an organism that can capture energy from the sun
photosynthesis
process by which primary producers make energy
consumer
organism that needs to get energy from other organisms
decomposer
organism that breaks down nonliving matter into simple parts
cellular respiration
process by which organisms use oxygen to release chemical energy
eutrophication
intro of phosphorus into body of water creating over growth of algae
nitrogen fixation
conversion of nitrogen gas into ammonia