Relationships between salinity, temperature and density
You will create a graph using one of the following sets of data. You may create it on Word or print the graph paper, draw it and take a picture and insert it onto your document. Make sure you are including all important aspects of a graph. OR
5
10
15
20
25
30
1
1.01
1.01
1.01
1.02
1.02
How Salinity Affects Density of Water
Amount of Salinity (ppt)
Density of Water (g/cm3
After completing the graph, you will need to explain the following underneath the graph. You do NOT
have to use I
2 strategy, but you need to answer the questions in complete sentences. 1. What type of graph did you choose and why? I choose a bar graph because it shows all the components of the data in an organized way that makes it quick and easy to read.
2. What is the relationship between your x and y axis? The X axis in this graph represents the amount of salinity in each sample of water while the Y axis represents the density of the salt water. When there is more salinity in the water, the water becomes denser. Salt dissolves, adding more weight to the water, causing it to sink to the bottom. Therefore, in the graph we see the data go up at a constant rate.
Temperature of water (
0
C)
Density of water (g/cm
3
)
25
.997
45
.990
65
.98
85
.969
105
.955
115
.947
Salinity (ppt)
Density of
water (g/cm
3
)
5
1.002
10
1.007
15
1.010
20
1.014
25
1.017
30
1.021
