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1.1Describing Matter
1.1Describing Matter 5th Grade
Question | Answer |
---|---|
matter | anything that has mass and takes up space |
properties | things you can describe like red adn smooth as well as numbers like 10 grams or 50ml. |
measuring | a good way to decide what materials you should use |
properties of substances may change when | you change the state of matter of those substances |
same substances | when two objects have the same properties |
physical properties | things you can see or measure |
examples of physical properties | mass, color, size, shape, temperature |
chemical properties | things you can not see; the object must be altered to figure it out |
law of conseravation of mass | states that an object has the same mass even when it goes through a change; a solid ice cube that melts will have the same mass as the water it creates when it melts |
crystal of salt | solid, square, and clear |
texture | how something feels; for example: rough, smooth, fuzzy, silky etc. |
solids | have a definite shape and their particles are close together |
liquids | have no definite shape, but do have a definite volume; particles are a little spread out |
liquids | shape changes based on the shape of the container |
gases | do not have a fixed shape or volume; and their particles are far apart |
example of chemical property | reactivity |