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ECE Science 2
| Question | Answer |
|---|---|
| Characteristics of FORMAL Learning | compulsory, structured, assessed, evaluated, sequenced, have classroom context, are curriclum-based, teacher directed, has solitary work, empirically-measured outcomes |
| Characteristics of INFORMAL Learning | voluntary, unstructured, non-assessed, unevaluated, open-ended, out-of-school context, non-curriculum based, has many unintended consequences, social intercourse, has less directly measured outcomes |
| physical science | states of matter, forms of energy, position and motion of objects |
| solid | particles are very close together |
| liquid | particles are closer together than a gas, but farther apart than a solid |
| gas | particles are very far apart |
| texture | characteristics and appearance of an object given by the size, shape, density, arrangement, proportion of its elementary parts, Examples include hard, soft, rough, smooth, coarse, fine, matt, glossy |
| hardness | a measure of how much a material resists changes in shape, Hard things resist pressure. Examples of hard materials: diamond, steel, ice, granite, and concrete |
| freezing point | the temperature at which a liquid changes to a solid. |
| melting point | the temperature at which a solid changes to a liquid |
| boiling point | the temperature at which a liquid changes to a gas |
| mass | how much matter there is in an object. Does NOT equal weight |
| mass = | density X volume |
| volume | the amount of space an object takes up |
| volume = | mass/density |
| physical changes results in a change in ..... | shape and size |
| chemical changes result in a change that forms a _____ | new substance at the molecular level |
| examples of a physical change... | tearing, folding, melting, freezing, evaporating, and cutting |
| examples of a chemical change... | rotting, burning, cooking, and rustng |
| changes in matter can happen by _________ | removing or adding energy in the form of boiling, condensation, and evaporation |
| boiling | rapid vaporization of a liquid (liquid to gas) |
| condensation | water that collects as droplets on a cold surface when humid air is in contact with it (gas to liquid) |
| evaporation | vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase (liquid to gas) |
Created by:
kristikee