Calculating Density

Calculating Density....

using mass and volume

Objective

• To calculate density

• To takes notes in your journal for future use when calculating density during chemistry.

VOCABULARY - Write in your journal PG #28

• Classify - To sort or put things into groups based on similar and dissimilar physical, chemical, or biological characteristics.

• Matter - anything that has volume and mass

• Volume - the amount of space an object takes up. Measured in milliliters (mL)

• Mass - the amount of how much matter is in an object, measured in grams (g)

• Density - the amount of matter in a given space or volume

• Displacement - a procedure used to measure the volume of a solid object by placing it in a known amount of liquid, like water, and finding the difference in the liquid volume measurements before and after the object is added.

• Physical Property - A characteristic that can be observed or measured without changing the substance.

THINK!

• Do you know how to tell if gold is “real or if it is something else such as “fool’s gold?

• Many jewelry stores in the U.S. sell fool’s gold as real gold.

• One method of determining real gold from something else is to know its density.

• The density of real gold is 19.3 g/cm3.

• We can test to see if gold id real by using the displacement method from your vocabulary.

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How to perform a density test!!!

• For your journal, Pg #29.

• The attachment is in the daily work is for you to print.

• In person students can get a copy from me.