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matter and materials
| Term | Definition |
|---|---|
| sublimation | transition of a substance from solid-gas or gas to solid with out passing through the intermediate liquid phase |
| deposition | -occurs at a specific tempature and pressure for a specific substance -requires extra energy |
| element | made up of only one atom |
| compound | made up of more than one atom |
| physical change in matter | changes physically but does not change what it is |
| chemical change in matter | can change chemically by adding/taking away an atom or molecule -changes what is -happens when things "decompose" |
| what is matter | -everything around us -anything made up of atoms or molecules -has a mass (weight) -so far 5 forms have been found in the universe |
| what are the 5 states of matter | bose-einstein condensate, solid, liquid, gas, plasma |
| pressure | -a type of energy higher pressure=more energy lower pressure=less energy -changing pressure can change phase of matter |
| solids with higher melting points | steel, rock or plastic |
| if energy increases, matter changes from | solid-liquid or liquid-gas |
| what is 0 degrees Kelvin, Absolute Zero or -273 degrees celcius | when all molecular movement stops |
| dry ice | made by compressing carbon dioxide gas until it liquifies (CO2) |
| temperature | -a type of energy higher temperature=more energy lower temperature=less energy -changing temperature can change phase of matter |
| common elements | He, H, O, C |
| common compounds | H2O, CO2, C6H12O6 |
| liquid | -take the shape of their container -difficult to compress -molecules stuck together (cohesion) -close together |
| gas | -random groups of atoms and molecules -more spread out -have lots of energy |
| plasma | -a lot like gas -when charged with electricity they glow -not very common |
| solid | -usually hard -hold their shape/don't move around eachother -molecules packed tightly together/not alot of space |
| bose-eintein condensate | -only created in 1995 -very low energy atoms "clump" -exists at -273 degrees celcius or 0 degrees Kelvin or absolute zero |
| examples of solids | marble, chair, book, computer |
| examples of liquids | honey, juice, maple syrup, water, dish soap |
| examples of gas | water vapour, oxygen, steam, helium, air |
| examples of plasma | -lightning, Northern lights, stars(including sun), tail of a comet, fluorscent lights/neon lights |
Created by:
syddj123
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