Reading...
Play button
Play button
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;
33 Cards in this Set
- Front
- Back
|
Chemistry
|
The study of the properties of matter and how matter changes.
|
|
|
Substance
|
A single kind of matter that is pure and has a specific set of Properties.
|
|
|
Physical property
|
A characteristic of a pure substance that can be observed without changing it into another substance.
|
|
|
Chemical property
|
A characteristic of a pure substance that describes its ability to change into different substances
|
|
|
Element
|
A pure substance that cannot be broken down into any other substances by chemical or physical means
|
|
|
Atom
|
The basic particle from which all elements are made.
|
|
|
Chemical bond
|
A force of attraction between to atoms
|
|
|
Molecules
|
Groups of two or more atoms held together by a chemical bond
|
|
|
Compound
|
A pure substance made of two or more elements chemically combined in a ratio
|
|
|
Chemical formula
|
Shows the elements in the compound and the ratio of the atoms
|
|
|
Mixture
|
Two or more substances that are mixed together but not chemically combined
|
|
|
Heterogeneous mixture
|
A mixture in which pure substances are unevenly distributed throughout the mixture
|
|
|
Homogeneous mixture
|
A mixture in which substances are evenly throughout the mixture
|
|
|
Solution
|
An example of a homogeneous mixture
|
|
|
Weight
|
A measure of the force of gravity on you
|
|
|
Mass
|
The measurement of the amount of matter in the object
|
|
|
International System of Units
|
The system of units used by scientists to measure the properties of matter
|
|
|
Volume
|
The amount of space that matter occupies
|
|
|
Density
|
The ratio of the mass of a substance to its volume
|
|
|
Physical Change
|
A change in the substance that does not change its identity
|
|
|
Chemical Change
|
A change in which one or more substances combine or break apart to form new substances
|
|
|
Law of Conservation of Mass
|
The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change
|
|
|
Energy
|
The ability to work or cause change
|
|
|
Temperature
|
A measure of the average energy of motion of the particles of a substance
|
|
|
Thermal Energy
|
The total potential and kinetic energy of the particles in an object
|
|
|
Endothermic Change
|
A change in which energy is taken in
|
|
|
Exothermic Change
|
A change in which energy is released
|
|
|
Kinetic Energy
|
Energy of matter in motion
|
|
|
Potential Energy
|
The energy an object has because of its position
|
|
|
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
|
|
|
Electrical Energy
|
Electrical Energy
|
|
|
Electrode
|
A metal strip that conducts electricity
|
