| Term | Definition |
|---|
| matter | Anything that takes up space and has mass. |
| physical change | when matter changes the way something looks & feels |
| chemical change | when matter changes something into a new substance |
| solid | matter that has a definite shape and takes up a definite amount of space |
| liquid | a wet substance that you can pour, definite size-no definite shape, flows freely |
| gas | a substance-air that will spread to fill any space that contains it, no definit size or shape, flows freely |
| property | a special quality or characteristic of something ex:properties of a liquid |
| molecule | the smallest part of a substance that displays all the chemical properties of that substance-more than one atom |
| temperature | the degree of heat or cold in something, usually measured with a thermometer |
| natural light | light that comes mostly from the sun |
| artificial light | man-made light ex:light bulb |
| transparent | substance that is clear like glass and lets light through so you can see the object clearly |
| translucent | substance that is not completely clear but will let some light through ex:wax paper |
| opaque | substance that does not let light through ex:tin foil |
| reflection | when rays of light or heat bounce off an object-bouncing |
| refraction | when light rays/sound waves change direction-bending |
| spectrum | the range of colors that is revealed when light shines through a prism or rain drop ROYGBIV |
| prism | a clear glass or plastic shape that bends light or breaks it up into the colors of the spectrum |
| rainbow | an arc of different colors caused by the bending of sunlight as it shines through water vapors at a 48 degree angle |
| light rays | light travels in a straight line ex:flashlight |
| shadow | when an object is placed in the path of light it causes a |
Combine with other sets
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