Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
6th Grade Chemistry
| Question | Answer |
|---|---|
| element | a pure substance that cannot be broken down by any means; examples include carbon, oxygen, hydrogen |
| matter | anything that has mass and volume |
| compound | two or more elements chemically combined |
| physical property | a characteristic that can be observed without changing what the substance is made of. Ex. The bread is soft. |
| chemical property | a characteristic that you observe when a substance REACTS with another substance. Ex. Silver reacts with oxygen (tarnishes). |
| physical changes | a change that alters the appearance of a substance, but does not affect what it is made of. Ex. Dry ice sublimating. |
| chemical changes | a change in matter that produces a new substance. Ex. Burning toast. |
| mass | the amount of matter in an object |
| volume | the amount of space an object takes up |
| density | the amount of matter in a given space. d=mass divided by volume |
| precipitate | a solid that forms as the result of a chemical reaction between two liquids |
| sublimation | the phase change from a solid to a gas; dry ice does this |
| reactivity | the ability of a substance to react with another substance to form something new |
| condensation | the phase change that occurs when a gas cools down enough to change to a liquid; clouds are formed this way |
| vaporization | phase change from a liquid to a gas; molecules speed up and move further apart |
| evaporation | phase change from a liquid to a gas; occurs on the surface of a liquid |
| organic | compounds that contain carbon; compounds that come from once living organisms |
| inorganic | compounds that come from minerals; compounds that come from non-living material |
| periodic table | a systematic way to organize elements according to common physical and chemical properties |
| ductility | the ability of a substance to be stretched into a very thin wire such as gold; this is a PHYSICAL PROPERTY |
| malleability | the ability of a substance to be pounded into thin sheets without shattering such as aluminum; this is a PHYSICAL PROPERTY |
| conductivity | the ability of a substance to allow heat or electricity to travel through it easily such as copper; this is a PHYSICAL PROPERTY |
| metals | a group of shiny, strong, & solid elements that are good conductors of electricity and heat and are usually malleable & ductile |
| non-metals | a group of elements that are either weak, brittle solids or gases that are not conductors, not malleable, and not ductile |
| metalloids | a group of elements that have properties of both metals and non-metals |
| boiling point | the temperature at which a substance changes state from a liquid to a gas; ex. water boils at 100 degrees C and this is a PHYSICAL PROPERTY |
| melting point | the temperature at which a substance changes state from a solid to a liquid; ex. water melts 0 degrees C and this is a PHYSICAL PROPERTY |
| luster | the state or quality of shining by reflecting light |
Created by:
LSumrall72
Popular Chemistry sets