Describing Matter
Anything that has mass and takes up space
Matter
Substance that can't be broken down into other substances
measure of the force of gravity on you
weight
alters the form or appearance of matter but does not turn the substance into a different substance
physical change
The ability to rust is a _______ property
chemical
The study of matter and how it changes
Chemistry
atom
amount of matter in an object
mass
what is the law of conservation of mass?
matter cannot be created or destroyed in a physical or chemical change
A mixture you can easily separate
Heterogeneous
Substance
when atoms combine, they form a _________ bond, and combine to form larger particles called _________
amount of space matter occupies
Measure of how hot or cold something is
temperature
SI unit of volume
meters cubed m3
smaller- cm3
A characteristic of a substance that can be observed without changing into a new substance
physical property
A substance made of two or more elements in a set ratio
compound
SI units of mass
kilograms (kg)
(when something is tiny, grams are used)
total energy of motion of all of the particles in an object
thermal energy
a change that releases thermal energy
a characteristic of a substance that describes its ability to change into different substances
chemical property
When two or more substances are together in the same place but the atoms are not chemically bonded
mixture
formula for density
Mass/volume
a change when energy is absorbed
endothermic energy
energy stored in chemical bonds
chemical energy