DENSITY WORKSHEET
Name:__________________________
Class:____________
Question 1
1.1
A block of aluminium occupies a volume of 15.0 𝑚𝑙 and weighs 40.5 𝑔.
What is its density?
1.2
(2)
Mercury metal is poured into a graduated cylinder that holds exactly 22.5𝑚𝑙.
The mercury used to fill the cylinder weighs 306.0 𝑔. From this information, calculate the
density of mercury.
1.3
(2)
What volume of silver metal will weigh exactly 2,5 kg. The density of silver is 10.5 𝑔. 𝑐𝑚−3 .
(2)
1.4
The figure below gives the dimensions of a rectangular prism of gold.
Using this information, calculate the density of gold if the prism has a mass of 1391𝑔.
(4)
1.5
A cylinder has a radius of 15𝑐𝑚 and a height of 50𝑐𝑚. Calculate the mass of distilled water
that would be required to fill this container.
Conversion
1 𝑚𝑙 = 1𝑐𝑚3
Density planning
Task 1: measure volume using cylinder
(5)
DENSITY PRACTICAL
GRADE 8 CORNWALLHILL COLLEGE
1. Finding Density
You are provided with:
-
1 Graduated cylinder
3 cubes (iron, wood, aluminium)
Triple beam balance
Water
Ruler
Use the given apparatus to determine the density of the 3 blocks in two different ways. Record
your findings in the table below.
Block
Mass (𝒈)
Volume using
Graduated
Cylinder (𝒎𝒍)
Volume using ruler
measurement
(𝑽 = 𝒔𝟑 )(𝒄𝒎𝟑 )
Density
𝒎
(𝒅 = 𝒗 )
(𝒈. 𝒄𝒎−𝟑 )
Wood
Iron
Aluminium
Using your information above, arrange the blocks in order of increasing density.
2. Make your own Lava Lamp
You are provided with:
-
A 300ml beaker
Oil
Water
Food colouring
Medicine dropper
Eno effervescing tablet
Method
1.
2.
3.
4.
Fill the beaker with 200ml of oil. .
Add another 100ml of water.
Use medicine dropper to drop a few drops of food colouring into your mixture.
Now, place one Eno effervescing tablet into your beaker and watch the magic happen.