# A Comparison of the density of Ice and water

Essay by rarwdinosaursHigh School, 11th grade July 2007

Ã¯Â¿Â½

Aim: To measure the mass of several different volumes of water and ice and use these to calculate their densities.

Equipment:

Electronic balance

Water

Ice cubes

Measuring cylinder

100mL beaker

Risk Assessment:

 Hazard Control Use of glass instruments - careless usage may lead to breakage Care

Part A: The density of water

Method:

The mass of the empty measuring cylinder was recorded using the electronic balance.

Water was added to the measuring cylinder using the 100mL beaker.

The combined mass of the measuring cylinder and water was recorded.

The mass of the water and the volume of the water was calculated using the difference between the above values (Combined mass of water and measuring cylinder - mass of measuring cylinder).

This procedure was repeated another 4 (reliability).

Results:

 Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Mass of 100mL measuring cylinder (g) 134 134 134 134 134 Mass of water + cylinder (g) 154 164 174 184 194 Mass of water (g) 20 30 40 50 60 Volume of water (ml) 20 30 40 50 60

Average Density calculated as 1 g/mL.

Class results:

 Group number Density calculated 1 1 2 1 3 1 4 1 5 1 6 1

Questions:

How did your value compare with those of the rest of the class? The value was consistent throughout the class.

Suggest possible reasons for variations between groups. There was no variation - as seen in the above table.

***************************************************Part B: The Density of Ice

Method:

The mass of an ice cube was measured using the electronic balance.

The ice cube was submerged in a measuring cylinder filled with water up to the 40mL line.

The amount of water that was displaced by the ice cube was recorded (this is equal to the volume of the...