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ENV: Unit 2 Set 1

ENV-2

TermDefinition
Water molecule A compound composed of two hydrogen atoms and one oxygen atom.
Polar molecule A molecule with a partial positive charge on one end and a partial negative charge on the other.
Hydrogen bonding The attraction between the positive end of one water molecule and the negative end of another.
Cohesion The attraction between like molecules.
Adhesion The attraction between unlike molecules.
Surface tension The force that acts on the surface of a liquid, tending to minimize the surface area.
Capillary action The ability of a liquid to rise in a narrow tube against the force of gravity.
Specific heat The amount of heat energy required to raise the temperature of a substance by a specific amount.
Density The mass of a substance per unit volume.
Water cycle The continuous movement of water between the Earth's surface, atmosphere, and oceans.Matter
Atom The smallest unit of an element that retains the properties of that element.
Element A pure substance made up of only one type of atom.
Compound A substance made up of two or more different elements chemically combined.
Mixture A combination of two or more substances that are not chemically combined.
Chemical reaction A process that changes one or more substances into different substances.
Energy The ability to do work.
Law of conservation of mass The total mass of reactants in a chemical reaction equals the total mass of products.
Law of conservation of energy Energy cannot be created or destroyed, only transformed.
Created by: user-1983196
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