Density Make-Up Work
Please read everything and do all practice problems on this sheet by Monday. We will have a chance to review
in class on Monday.
D
MASS
VOLUME
=
Mass is measured on a triple beam balance units = GRAMS.
Volume is measured in two ways.
Regular Object = Length X Width X Height
units = cm3
Irregular Objects
units = mL



Pour about 50 mL of water into a graduated cylinder. Measure and record the exact amount.
Add the object. Measure and record the new water level.
SUBTRACT the original water amount from the new water level to find the volume of the object.
D
MASS (g)
VOLUME (cm3)
=
Example One:
A mineral has a mass of 100g and a volume of 10 mL. What is its density?
D
= mass
Volume
=
100g
10 mL
= 10 g/mL
Example Two:
A mineral has a mass of 25 g and a volume of 5 cm3. What is its density?
D
= mass
Volume
=
25g
5 cm3
= 5 g/cm3
**Mass ÷ Volume to find the numerical answer. Bring over BOTH units**
Complete the following practice problems by Monday so we can review in class.
Be sure to show your work, including units!
1. A mineral has a mass of 30 g and a volume of 6 mL. What is its density?
2. A mineral has a mass of 60 g and a volume of 2 mL. What is its density?
3. A mineral has a mass of 27 g and a volume of 6 cm3. What is its density?
4. A mineral has a mass of 30 g and a volume of 9 cm3. What is its density?
5. A mineral has a volume of 6 mL and a mass of 12g. What is its density?