Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
Matter |
anything that has mass and takes up space |
|
|
Chemistry |
the study of matter and how it changes |
|
|
Substance |
a single kind of matter that is pure. |
|
|
Physical Property |
a characteristic of a substance that can be observed without changing it into another substance. |
|
|
Chemical Property |
a characteristic of a substance that describes its ability to change into different substances. |
|
|
Element |
A pure substance that cannot be broken down into other substances by chemical or physical means. |
|
|
Atom |
The basic particle from which all elements are made. |
|
|
Chemical Bond |
The force that holds two atoms together. |
|
|
Molecule |
A particle made of two or more atoms bonded together. |
|
|
Compound |
A pure substance made of two or more elements chemically combined. |
|
|
Chemical Formula |
A formula that gives the elements in a compound and the ratio of atoms. |
|
|
Heterogenes Mixture |
A mixture in which pure substances are unevenly distributed throughout the mixture. |
|
|
Homogenes Mixture |
A mixture in which substance are evenly distributed throughout the mixture. |
|
|
Solution |
An example of a homogenous mixture; forms when substances dissolve. |
|
|
Mixture |
Two or more substance that are mixed together but not chemically combined. |
|
|
Weight |
A measure of the force of gravity on an object. |
|
|
Mass |
A measure of how much matter is in an object |
|
|
International System of Units |
The systems of units SI used by scientist to measure the properties of matter. |
|
|
Volume |
The amount of space that matter occupies. |
|
|
Density
|
The measurement of how much mass of a substance is contained in a given volume. |
|
|
Phisycal Change |
A change in a substance that does not change its idenity. |
|
|
Chemical Change |
A change in which one or moresubstances combine or break apart to form new substances. |
|
|
Law of conversation of mass |
The princeple that the total amount of matter is neither created nor destroyed during any chemical or physical change. |
|
|
Energy |
The ability to do work or cause change. |
|
|
Tempature |
A measure of the average motion of the particles of a substance. |
|
|
Thermal Energy |
The total energy of all the particles in a object. |
|
|
Endothermiic Change |
A change in which energy is taken in. |
|
|
Exothermic Change |
A change in which energy is given of. |
|
|
Kinetic Energy |
The energy of matter in motion. |
|
|
Chemical Energy |
A form of potential energy that is stored in chemical bonds between atoms. |
|
|
Electromagnetic Energy |
A form of energy that travels through space as waves. |
|
|
Eletrical Energy |
The energy of electrically charged particles moving from one place to another. |
|
|
Electrode |
A metal strip that conducts electricity. |
|
|
Potential Energy |
The energy an object has because of its Position; Also the internal stored energy of an object, such as energy stored in chemical bonds. |
