Term
|
Definition
| using your senses to gather information |
|
|
Term
|
Definition
| using prior knowledge to explain something |
|
|
Term
|
Definition
| forecasting the future based on past experience |
|
|
Term
|
Definition
| a testable explanation of data |
|
|
Term
|
Definition
| the factor that a scientist controls in an experiment |
|
|
Term
|
Definition
| what is affected by the manipulated variable |
|
|
Term
|
Definition
| other factors that must be kept the same in an experiment to make sure only the manipulated variable affects the responding variable |
|
|
Term
|
Definition
| well-tested EXPLANATION for a wide range of data |
|
|
Term
|
Definition
| what scientists expect to happen every time under certain conditions (law of nature) |
|
|
Term
|
Definition
| the amount of matter in an object (grams) |
|
|
Term
|
Definition
| the amount of space an object takes up (m3) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| energy of particles in a substance, or how hot it is |
|
|
Term
|
Definition
| international system of units, used by scientists all over the world, also known as metric system |
|
|
Term
|
Definition
| an observation involving numbers |
|
|
Term
|
Definition
| an observation involving neither numbers nor measurements |
|
|
Term
|
Definition
| anything that has mass and takes up space |
|
|
Term
|
Definition
| basic particle that makes up everything |
|
|
Term
|
Definition
| pure substance, cannot be broken down into other substances |
|
|
Term
|
Definition
| pure substance of two or more elements chemically combined in a set ratio |
|
|
Term
|
Definition
| two or more substances in the same place but not chemically bonded |
|
|
Term
|
Definition
| cannot see different parts, well mixed |
|
|
Term
|
Definition
|
|
Term
|
Definition
| combo of symbols that shows the elements in a compound |
|
|
Term
|
Definition
| shorthand way to show a chemical reaction using symbols |
|
|
Term
|
Definition
| can be observed without changing into another substance |
|
|
Term
|
Definition
| ability to react with other substances to make new substances |
|
|
Term
|
Definition
| alters appearance, not chemical makeup |
|
|
Term
|
Definition
| produces new substance(s) |
|
|
Term
| law of conservation of matter |
|
Definition
| atoms aren't created or destroyed during any chemical or physical change |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| a state of matter where particles are closely packed and vibrate in place, definite shape and volume |
|
|
Term
|
Definition
| a state of matter where particles are packed but not closely and slide past each other, definite volume |
|
|
Term
|
Definition
| a state of matter where particles move freely and collide with each other |
|
|
Term
|
Definition
| the most abundant state of matter where charged ions move freely |
|
|
Term
|
Definition
| result of an inward pull in liquid molecules that creates a "skin" on the liquid's surface |
|
|
Term
|
Definition
| a liquid's resistance to flowing |
|
|
Term
|
Definition
| change in state from solid to liquid, endothermic |
|
|
Term
|
Definition
| change in state from liquid to solid, exothermic |
|
|
Term
|
Definition
| change in state from gas to liquid, exothermic |
|
|
Term
|
Definition
| change in state from liquid to gas, endothermic |
|
|
Term
|
Definition
| vaporization takes place throughout a liquid |
|
|
Term
|
Definition
| vaporization takes place at the surface of a liquid |
|
|
Term
|
Definition
| change in state from solid to gas, endothermic |
|
|
Term
|
Definition
| variables have a graph going through the origin in a straight line and one increases as the other increases |
|
|
Term
|
Definition
| variables whose product is constant, one increases as the other decreases |
|
|
Term
|
Definition
| force exerted on a surface/area of surface |
|
|
Term
|
Definition
| part of an atom that is positively charged and is located in nucleus |
|
|
Term
|
Definition
| part of an atom that is negatively charged and determines what the atom reacts with |
|
|
Term
|
Definition
| part of an atom that has no charge and holds the nucleus together by separating protons, determines isotope |
|
|
Term
|
Definition
| most of the mass in the atom is located here |
|
|
Term
|
Definition
| electrons on the outer energy level, number determines what the atom will react with |
|
|
Term
|
Definition
| how many protons in an atom |
|
|
Term
|
Definition
| average mass of nucleus of all isotopes of an element |
|
|
Term
|
Definition
| sum of protons and neutrons in an atoms |
|
|
Term
|
Definition
| atoms with same number of protons but different numbers of neutrons |
|
|
Term
|
Definition
| describes an atom whose nucleus spits out particles |
|
|
Term
|
Definition
| element on left side of periodic table, react by losing electrons, properties:shiny, good conductor, mostly solids |
|
|
Term
|
Definition
| element on right side of periodic table, react by gaining electrons, brittle, bad conductors |
|
|
Term
|
Definition
| element on zigzag, react by sharing electrons, shares properties of metals and nonmetals |
|
|
Term
|
Definition
| between two semimetals sharing electrons |
|
|
Term
|
Definition
| between a metal and a nonmetal metal loses electrons, nonmetal gains electrons |
|
|
Term
|
Definition
| substance that enters into a chemical reaction |
|
|
Term
|
Definition
| substance created by a chemical reaction |
|
|
