click below
click below
Normal Size Small Size show me how
Science
Vocab, Multiple Choice, and open response
Question | Answer |
---|---|
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 |