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Science Unit 13
Science Unit 13 Lesson 1, 3, & 4 Vocabulary
Question | Answer |
---|---|
anything that has mass or volume | matter |
the amount of space something takes up | volume |
the measure of energy of motion of the particles in matter | temperature |
the quantity of matter that a solid, liquid, or gas contains | mass |
found by dividing the mass of an object by its volume | density |
a substance that has a definite volume but does not have a definite shape | liquid |
a substance that does not have a definite shape or volume | gas |
a substance with a definite shape and volume | solid |
when a gas cools down and changes to a liquid | condenses |
when a solid takes in energy its temperature rises unit it changes to a liquid | melts |
when a liquid takes in energy its temperature rises until it changes to a gas | evaporates |
liquid changes to a solid | freeze |
take up more space | expand |
take up less space | compress |
mixture of metals | alloys |
a mixture that has the same composition throughout because all of its parts are mixed evenly | solution |
a combination of two or more substances that keep their identities and be be easily separated | mixture |
the substance being dissolved in a solution | solute |
the substance doing the dissolving in a solution | solvent |
the process through which new substances are formed during a chemical change | reaction |
a law that states that mater cannot be made or destroyed; however, matter can be changed into a new form | conservation of mass |
change in which the form or shape of a substance changes, sub the substance still has the same chemical makeup | physical change |
changes in one or more substances, caused by a reaction that form new and different substances | chemical change |