Term | Definition |
atom | is the smallest particle of matter that has the properties of that matter |
chemical property and chemical reaction | a characteristic of matter than can be observed only when matter is changed into a new kind of matter. |
mass | the amount of matter within the object |
density | this is the physical property that describes how much mass is in a given space or volume |
matter | is anything that has mass and takes up space |
metric system | a scientific measurement system based on units of 10 |
molecule | a particle of matter made up of two or more atoms joined together |
physical properties | size, shape, color, and texture are examples of features your senses can describe |
states of matter | are the three forms that matter usually take. Solid, liquid, and gas |
volume | the amount of space matter takes up |
weight | the measure of the pull of gravity on an objects mass |
dissolve | to mix completely with another substance to form a solution |
energy | the ability to cause change |
heat | is a transfer of thermal energy from a hot region to a cold region |
mixture | matter made of two or more substances or materials that are physically combined |
physical change | a change in size, shape, or state of matter that does not result in a new kind of matter |
product | a new substance formed from a chemical reaction |
reactant | a substance that enters a chemical reaction |
solution | a mixture in which the particles of one kind of matter are mixed evenly with the particles of other kinds of matter |
temperature | a measure of how hot or cold something is |
thermal energy | the total energy of tiny moving particles of matter |