science mid-term

is anything that has mass and take up space

the study of matter and the changes it undergoes

2 or more atoms combined by a chemical bond

building blocks of matter

liquid , solid , gas

type od mixtue in which the composition is uniform

a mixture of 2 or more different substances in form of sollitons or collids

the force pushing on a surface divided by the area of the surface

the staes of absolute pressure and volume in a given mass of confined gas

describes how gases tend to form when heated

peroids (rows) groups , increases by 1 atomic number , metals on left - non metals on right. made by mendielth

1-choose a problem 2-research the problem 3-develope a hypothesis 4-design the experiment 5-conduct hypothesis 6-organize data 7- conclusion

a manipulated variable is a factor thats intentaionally varied by the experimentior

responding variable may change as the result of the changes from independent variable

serves a starand comparasion is exposed to the same conditions as the experimental group

the attraction between 2 opposity charged ions

a substance that tastes sour reacts with metals and carbonates , turns blue litmus red

a substance that tastes bitter feels slippery turns red litmus paper blue

a mixture containing small undissolved particlies that do not settle out

all atoms share the same basic structure protons and nurtrons in the nucleus electrons orbit around

a well mixed mixture containing a solvent and at least on solute that has the same properties throughout

associtated with atoms and can particapate in a chemical bond

creatred periodic table and is a russian scientist

elements gain or lose elecrons to gain elecrons

reactents yelid products