Monday, March 24, 2014

Homework tonight:
For homework tonight: from the blog, copy vocab words to notes, copy words + definitions to vocab section. Be sure to the note at the bottom of this post!
Variable - Any factor that can change the outcome of an experiment.
Controlled variable - A variable in an investigation or experiment that is held constant.
Dependent variable - The observed phenomenon that is being measured; the result that you measure at the end.
Dissolve - To break down into smaller particles using a solvent. A solute (like sugar) dissolves into a solvent (like water) to form a solution.
Independent variable - the variable that an experimenter chooses to change or manipulate, or play with.
Physical change - (you should already have this definition) Change that does not alter the composition of a material. Ex: change of state; breaking up a piece of material into smaller pieces.
Saturated, saturation - When the maximum amount of a substance (a solute) has dissolved in a solvent.
Soluble, insoluble - A substance that is able to dissolve in a solvent (liquid or gas).
Solubility - how well a substance can dissolve in a certain solvent such as water; solubility can be measured and varies from substance to substance.
Solute/solvent - the solute is a substance that dissolves in the solvent. Ex: sugar in water
Solution- The mixture that results when one substance, the solute, dissolves in the solvent, another substance - usually a liquid such as water.

If you already copied all of these vocab words, then please prepare a word wall vocab card using one of these words and their definitions.   Word wall cards must be on a regular size (81/2 x 11 inch) piece of paper or half a sheet.  Make it colorful and creative, make the defined word large and its definition small. 

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