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Unit 1 - Miss Kimble

Physical Science

TermDefinition
Mass How much matter is in something. It ALWAYS stays the same
Volume How much space something takes up
Density Whether an object floats or sinks in water
Physical Properties characteristics that can be observed or measured without changing the make up of a substance
States of Matter Solid, Liquid, or Gas
Matter Anything that has mass and takes up space
Solid a state of matter that has a fixed shape and volume
Liquid a state of matter that can change shape, but has a fixed volume
Gas a state of matter that changes shape and volume
Evaporation when liquid water becomes water vapor
Condensation when water vapor becomes liquid water
Magnetism the force of attraction or repel between 2 objects usually metal (iron, nickel, cobalt & steel)
Mixture Two or more substances that when mixed together can be separated easily (trail mix, fruit salad)
Solution Two or more substances that when mixed together can NOT be separated easily
Solubility whether a substance dissolves in water (salt, sugar)
Dissolve To add solid or gas to a liquid so that the particles get so small you can no longer see them
Conductor A material that allows heat energy or electricity to pass through it easily (usually metal)
Insulator A material that does not let heat energy or electricity to pass through easily (plastic, rubber, cloth, wood, Styrofoam)
Thermal Energy The energy of moving particles that produces heat