[2014] maria harar: First Semester Standards

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by mikeeby
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[2014] maria harar: First Semester Standards

Solvent/Solution- take place when two substances are thouroghly mixed together; the solvent is being disolved and the solute is what it is being disolved in. Concentration- a way to measure the amount of solvent and solutionsConductivity- a measure of the amount of concentration of a dssolved solid in a water solution.

First Symester Standards

Newtons 3 laws:1.objects in motion will stay in motion unless an outside force acts upon it.2.Both mass and force are factors in acceleration.3.For every action there will be an equal reaction.


Periodic Table of Elements-a way to organize all known chemical elements by atomic number, electrons and similar charecteristics.

PH Scale

Phases of Matter in Atomic MotionSolid- molecules are closely bound together and hold a solid shapeLiquid- molecules are moving freely as well as colliding with one another; hold the shape of the container that it is in Gas- molecules are weak and take the shape and mass of the container that it is in.


measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic.

Mass and Weight- mass is the amount of matter in a person; mass never changes. weight is the amount of gravitational pull on an object; weight depends on location.

Maria harar

Energy Transfer-energy transfer is begun with solar radiation. Plants then absorb this radiation which is eventually passed through the food chain as organisms eat one another.

Atom- atoms are made up of protons,neutrons,electrons, and a nucleus. Each atom has its own atomic number and mass .The atomic number depends soley on neutrons, the more neutrons it has, the larger the number .


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