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unit 3 lesson 1
physical properties of matter
Term | Definition |
---|---|
matter | anything that has mass and takes up space |
temperature | the average energy of motion of particles in matter, we feel it as hot or cold |
volume | the amount of space something takes up |
liquid | a substance with a definite volume but no definite shape |
gas | a substance with no definite volume and no definite shape |
solid | a substance with a definite volume and a definite shape |
relative density | determines whether a substance will sink or float |
less dense | another way to say it is floating |
more dense | another way to say it is sinking |
solubility | the ability to dissolve in another substance |
mixture | a combination of two or more substances that keeps their identities |
solution | a type of mixture that has the same composition throughout |
sieve | a science tool used to separate smaller objects from larger objects, such as sand from shells |
filter | a science tool used to separate very small objects from larger objects, such as salt water from pepper |
boil/ evaporation | what will we do to separate salt from water? |