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Published byMarjorie White Modified over 4 years ago

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If objects are the same size they will have the same density. Different materials have different densities. Density is made up of two other measurements – mass and volume. true The density of a substance like gold is always different. The density of a substance is the same for all samples of the substance. The density of water is 1 g/mL. true An object will float if it is more dense than the surrounding liquid. An object will float if it is less dense than the surrounding liquid.

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gold = 19.3 g/cm 3 8 cm 3 of gold = 154.4 g water = 1 g/mL wood = 0.5 g/cm 3 8 mL of water = 8 g8 cm 3 of wood = 4 g

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1. If you pack more mass into the same volume, it’s more dense. 2cm Volume = 8 cm 3 Mass = 8 g Volume = 8 cm 3 2 cm Volume = 8 cm 3 2 cm Mass = 16 gMass = 24g Density = 1 g/cm 3 Density = 2 g/cm 3 Density = 3 g/cm 3

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2.If you pack the same mass into a smaller volume, it’s more dense. 3 cm Volume = 27 cm 3 Mass = 54 g Volume = 8 cm 3 2 cm Volume = 1 cm 3 1 cm Mass = 54 g Density = 2 g/cm 3 Density = 6.75 g/cm 3 Density = 54 g/cm 3

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3.Just because something has more mass does not mean that it’s more dense. Mass = 10 gMass = 20 g Volume = 2 cm 3 Volume = 5 cm 3 Density = 5 g/cm 3 Density = 4 g/cm 3

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definition: the measure of how much mass is contained in a given volume of space Made up of two measurements: mass and volume density = mass volume density of a solid g/cm 3 density of a liquid g/mL density

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Formula: mass volume Example: styrofoam mass = 8 g volume = 35 cm 3 density = 0.2 g/cm 3

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mass = 18 g volume = 20 cm 3 density = 0.9 g/cm 3 candle

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mass = 5 g volume = 2 cm 3 density =2.5 g/cm 3 marbles

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mass = 78 g volume = 10 cm 3 density =7.8 g/cm 3 iron

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mass = 3 g volume = 6 cm 3 density =0.5 g/cm 3 beach ball

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mass = 35 g volume = 50 cm 3 density =0.7 g/cm 3 pumpkin

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mass = 81 g volume = 30 cm 3 density =2.7 g/cm 3 aluminum

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Definition:the measure of how much mass is contained in a given volume of space Formula:D = mass volume Units of Measurement: g/cm g/mL Booklet

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Density Lab

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