study of matter and the changes it undergoes
central science part of all other science class
100
biochemistry
matter and process of living organisms
metabolism fermentation
100
si units
time, length, mass, temp, amount of substance, electricity, luminous
100
4 states
how many states of matter or there
100
scientific law
relationship in nature
gravity
newton's law motion
boyles law
200
matter
anything that has mass and takes up space
200
organic chemistry
contain carbon
200
seconds
measurement of time in is units
200
liquid
definite volume and takes the shape of the container its in
200
substance
matter that has uniform and unchanging chemical composition
elements and compounds
300
mass
measure the amount of matter
300
inorganic chemistry
matter without carbon
minerals metals and nonmetals semiconductors
300
meters
measurement of length in is units
300
gas
no shape or volume
300
physical properties
characteristics that can be observed or measured without changing the substance
400
scientific methods
systematic approach used scientific study
not set in stone can be altered to fit setting
should be repeatable
400
physical chemistry
behavior and changes of matter relates to energy changes
reaction rates reaction mechanism energy use
400
kilograms
measurement of mass in is units
400
solid
definite shape of volume
400
chemical properties
ability of a substance to combine with or change into one or more substance
iron can rust CAN
stability
flammability it can burn
500
hypothesis
tentative explanation of what has been observed
educated guess
must be testable
not used for belief such as faith
500
analytical chemistry
- compound and composition
- food nutrients quality control
500
kelvin
measurement of temp in is units
500
plasma
gas like mixture of + and - pieces of matter
500
mixture
comb of 2 or more substance that retain their original properties
heterogeneous mixture - uneven mixed if you take a sample from top and bottom they will not match
homogeneous mixture - evenly combined if you take a sample from top and bottom they will match
alloy is sold mixture of metals