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Properties of Matter, Density, Chemical and Physical Changes, Mixtures

Kendra Hansen

on 28 May 2014

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Transcript of Matter

Matter Properties of Matter Density Physical and Chemical Changes Mixtures Physical Properties:
Mass-amount of matter in an object
-measured in grams
Volume-amount of space an object takes up
-measured in cubic units or milliliters
Temperature-measure of the heat or energy of matter
-measured in Degrees Celsius
Density Physical Properties-A property that can be measured without changing the chemical composition of a substance.
Chemical Properties-any characteristic that gives a substance the ability to undergo a change that results in a new substance. Matter-has mass, occupies space
-Four States (3 main ones)
-Phase Change Density-amount of mass in a certain volume Density= mass/volume (D=m/v) Suppose a substance has a mass of 10 grams and a volume of 10 milliliters. If you divide the mass of 10 grams by the volume of 10 milliliters, you get a density of 1 g/mL
10 g/10 mL = 1 g/mL Practice Problems If a cup of Kool-Aid has a volume of 50 mL and a mass of 10 grams, what is its density? If gasoline has a density of 2 and a volume of 4 , what is its mass? -The density of pure water is 1 g/mL. -Objects with a density LESS than 1 g/mL will float in water. -Objects with a density MORE than 1g/mL will sink in water. Examples-Tearing paper, ice melting Physical Change-Change in the size, shape, or state of matter. Chemical Change-Change in matter in which different kinds of matter are formed. Examples-Burning wood, rusting pipes Brain Pop-States of Matter Brain Pop-Measuring Matter Mixture: A combination of different substances that remain the same individual substances and can be separated by physical means. How could you separate these mixtures?
-sand and water
-iron and sugar
-salt and water
-oil and water
-sand I can:
-Measure properties of matter (mass, volume, temperature, density).
-Classify chemical and physical changes.
-Identify and separate homogenous and heterogeneous mixtures.
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