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Science

Vocab, Multiple Choice, and open response

QuestionAnswer
exothermic releasing heat freezing, burning, condensation
endothermic absorbing heat melting, photosynthesis, evaporation
evaporation liquid changing to gas
condensation gas changing to a liquid
solid definite shape and volume
liquid definite volume but not definite shape
gas and plasma no definite shape or volume
compund water, carbon dioxide, salt, vinegar, nitrogen, oxygen 2 or more substances that are chemically combined
elements carbon. oxygen, gold, lead, iron, nitrogen, hydrogen. pure substance made up of 1 atom
mixtures cool-aid, salt water, lemonade, salad, air, paint, milk, trail mix, vinegar, oil. not chemically combined and are made up of 2 or more substances.
chemical properties flammability, perishability, oxidation, reactivity
physical properties phase or state, density, color, texture, shape
mass amount of matter in an object
volume amount of space that an object takes up length times width times height
density amount of mass in a specific volume mass divided by volume
mixture vs. pure substance mixture is made up of 2 or more substances and is not chemically combined. pure substance is made up of 1 substance and are chemically combined.
pure substance matter made up of 1 kind of material with definite properties
how to find density need a beaker water scale pencil and paper to record and do mathyou would put your object on the scale and balence it out and record the volume next you fill filla beakler with water and put your object in the water and then record how much water is left