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;
20 Cards in this Set
- Front
- Back
|
Melting |
heat causes a solid to turn to a liquid |
|
|
Pure Substances |
single melting point |
|
|
Mixtures |
several points |
|
|
Freezing |
liquid -> solid |
|
|
Freezing Point |
temperature when change occurs |
|
|
Vaporization |
solid/liquid -> gas |
|
|
Rate of Vaporization |
how fast a liquid/solid changes into a gas |
|
|
Vapor Pressure |
pressure building up within a liquid |
|
|
Boiling |
vapor bubbles form in a liquid and rise to the surface |
|
|
Evaporation |
temperature between melting point and boiling point { only on surface of liquid } |
|
|
Sublimation |
solid becomes a gas without becoming a liquid |
|
|
Condensation |
vapor -> liquid |
|
|
Deposition |
solid -> vapor |
|
|
Nuclear Change |
an atoms nucleus emits or absorbs a nuclear particle or ray splitting the nucleus into smaller nuclei |
|
|
Chemical Changes |
occurs when atoms of different substances break apart and combine in different ways |
|
|
Non-reversible |
chemical changes |
|
|
Physical changes |
any change in the matter or substance. these changes are in the arrangement of the matter |
|
|
Reverseable |
physical changes |
|
|
Chemical Properties |
how matter acts or reacts when it comes intothe presence of other subatnces |
|
|
Physical Properties |
anything about a substance that we can observe or measure without changing the chemical composition of the substance. color, density, hardness, & texture |
