Anything that has mass and occupies space A characteristic of a pure substance that can be observed without changing it into another substance A characteristic of a pure substance that describes its ability to change into a different substance A pure substance that cannot be broken down into other substances by chemical or physical means The basic particle form which all elements are made The force that holds two atoms together A particle made of two or more atoms bonded together A pure substance made of two or more elements chemically combined two or more substances that are mixed together but not chemically combined A mixture in which pure substances are unevenly distributed throughout the mixture A mixture in which substances are evenly distributed throughout the mixture An example of a homogeneous mixture; forms when substances dissolve A measure of the force of gravity on an object A measure of how much matter is in an object the principle that the total amount of matter is neither created nor destroyed during any chemical or physical change The ability to do work or cause change A measure of the average energy of motion of the particles of a substance The total energy of all the particles of an object A change in which energy is taken in A change in which energy is given off The energy of matter in motion The energy an object has because of its position; also the internal stored energy of an object,, such as energy stored in chemical bonds A form of potential energy that is stored in chemical bonds between atoms The energy of electrically charged particles moving from one place to another A form of energy that travels through space as waves principle that energy is neither created nor destroyed but can change states of matter Thermal, Kinetic, Potential, Electromagnetic, Electrical and Chemical Energy Homogeneous mixtures (also called solutions) are mixtures that you cannot point out the components that you have combined while heterogeneous mixtures are mixtures that you can easily point out the components that you have combined. The mass and velocity Hot to Cold density= mass/volume Electrical energy is like Kinetic energy because both have to do with movement Mass is the measure of the amount of matter there is in an object and weight is a measure of how strongly gravity pulls on matter. Therefore if you were to go to the moon your weight would change because the pull of gravity is weaker there than on Earth but, your mass would stay the same because you are still made up of the same amount of matter. The ability to do work