Rainbow Lab
Purpose:
To make various saline solutions and layer them according to their respective densities.
Materials :
Scale/Balnce
1 - 100 mL Graduated Cylinder
2 - 150 mL Beakers
Pipette
Sheet of background paper, white
kosher Salt
Food Coloring
Water
Methods:
To make various saline solutions and layer them according to their respective densities.
Materials :
Scale/Balnce
1 - 100 mL Graduated Cylinder
2 - 150 mL Beakers
Pipette
Sheet of background paper, white
kosher Salt
Food Coloring
Water
Methods:
Solution Number
1
2 3 4 5 |
Salt (g)
16.0
11.7 7.2 3.4 0.0 |
Water (mL)
60
60 60 60 60 |
Food Coloring (drops)
2 - Blue
2 - Green 2 - Yellow 1 - Yellow, 1 - Red 2 - Red |
Mass of Salt
16.0 g 11.7 g 7.2 g 3.4 g 0.0 g |
Mass Water
60.0 g 60.0 g 60.0 g 60.0 g 60.0 g |
Mass of Solution
76.0 g |
Volume of Solution
60.0 ml |
Density of Soluion
1.27 g/ml |
Conclusion:
- All of the solutions that were made up of salt and water formed different layers by having different density levels because water is a universal solvent.
- The salties layers in the ocean would be on the surface of the
- Density gets heavier or lighter depending on if the temperature is increasing and decreasing.
- In the ocean water column you can find warm, fresh water on the surface of the ocean where the sun shines, and to find the colder, saltier water in the deep ocean because the colder, saltier water dont get enough sunshine and nothing moves down there for the salt to dissolve.