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science test

QuestionAnswer
matter everything that has mass and takes up space.
element The ingredients that make up all other substances. Can't be broken down into other substances.
metals good conductors of electricity and heat. Can bend without breaking. Most have a gray color.
nonmetals Do not conduct heat / electricity very well. May be a gas or a solid.
semi-metals sometimes like metals and sometimes like nonmetals.
atom the smallest part of an element that still acts like that elementatomiv.
atomic theory states that everything is made of atoms.
compound a type of matter made of two or more elements.
molecule smallest particle of a compound that still acts like that compound.
proton Positive charge. Found in the nucleus.
neutron No charge. Found in the nucleus.
electron Negative charge. Orbits the nucleus.
solid Has a definite volume or shape. Particles are very close together, and don’t move past each other. Keeps its shape.
liquid Has a definite volume but not shape. Particles can move past each other. Takes shape of container
gas
plasma Like a gas, but conducts electricity like a metal. Occurs with high temps or electric charge.
melting point Solid to liquid or liquid to solid. Same temperature as freezing point.
evaporation when liquids become gas
condensation When gas becomes a liquid. Gas particles touch a cold surface and the temperature drops.
boling point the temperature at witch evaporation occurs.
mixture
solution A mixture where substance spreads out evenly and will not settle
solute The substance being dissolved
solvent What the substance is dissolved in
solubility A way to measure how much a material dissolves into another
Created by: George-lisec
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