# File - Mr. Gaydos' Website ```Name___________________________
Period ____
Date _______________
Science
Density is the ratio of the mass of the substance to the volume of the
substance at a given temperature. Density has units of g/ cm3 or g/c.c. or g/mL
for liquids and solids, and g/L for gases. Density is an intensive property.
Density varies with change in temperature.
1. Define mass?
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2. Define volume?
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3. Define density and show the formula for calculating density.
3. Calculate the densities of the following objects. Remember to place units
after each number.
Object A length = 6cm width = 3cm height = 1cm mass = 36g
volume = _____ density = _____
Show Work
Object B length = 10cm width = 5cm height = 2cm mass = 300g
volume = _____ density = _____
Show Work
Object C Use the water displacement method to determine the
density of object C (silly putty) initial water level in graduated
cylinder = 25ml final water level after placing silly putty into
graduated cylinder = 29ml mass of silly putty=8g
volume = _____ density = _____
Show Work
4. A gold-colored ring has a mass of 18.9 grams and a volume of 1.12 mL. Is
the ring pure gold? (The density of gold is 19.3 g/mL.)
SHOW WORK
5. What volume would a 0.871 gram sample of air occupy if the density of air
is 1.29 g/L?
6. Pumice is volcanic rock that contains many trapped air bubbles. A 225
gram sample occupied 236.6 mL. What is the density of pumice?
7. Will pumice float on water? The density of water is 1.0 g/mL.)
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