Materials
1. Scale/ Balance
2. 1-100mL Graduated Cylinder
3. 2- 150mL Beakers
4. Dropper
5. Sheet of White Paper
6. Salt
7. Food Coloring
8. Water
1. Scale/ Balance
2. 1-100mL Graduated Cylinder
3. 2- 150mL Beakers
4. Dropper
5. Sheet of White Paper
6. Salt
7. Food Coloring
8. Water
First, prepare each solution by adding salt, water, and food coloring in the following amount.
Solution Number Salt (g) Water (ml) Food Coloring (drops)
1 16.0 60 2- Blue
2 11.7 60 2- Green
3 7.2 60 2- Yellow
4 3.4 60 1- Yellow 1- Red
5 0.0 60 2- Red
Solution Number Salt (g) Water (ml) Food Coloring (drops)
1 16.0 60 2- Blue
2 11.7 60 2- Green
3 7.2 60 2- Yellow
4 3.4 60 1- Yellow 1- Red
5 0.0 60 2- Red
Directions: Using your pipette, slowly draw up the solution. Place 20ml of each solution in the 150ml beaker. For the second, third, fourth, and fifth solutions, place the pipette along the inside of the beaker near the previous layer of solution, but not touching it. Drop the next solution drop-by-drop, gently allowing it to roll down the side.
Data Pictures:
Calculations:
Solution Number Mass of Salt Mass Water Mass of Solution Volume of Solution Density of Solution
1 16.0g 60.0g 76.0 g 60.0 ml 1.27 g/ml
2 11.7g 60.0g
3 7.2g 60.0g
4 3.4g 60.0g
5 0.0g 60.0g
Solution Number Mass of Salt Mass Water Mass of Solution Volume of Solution Density of Solution
1 16.0g 60.0g 76.0 g 60.0 ml 1.27 g/ml
2 11.7g 60.0g
3 7.2g 60.0g
4 3.4g 60.0g
5 0.0g 60.0g
Analysis: Graph
Conclusion:
1) The solutions formed different layers because each layer has different densities.
2) I think the saltiest layers would be found in the bottom of the ocean because salt is dense and it will sink.
3) Density increases or decreases as temperature changes.
4) You will find warm, fresh water on the top and colder, saltier water on the bottom. You will find warm, fresh water at the top because it is less dense and you will find colder, saltier water at the bottom because it is more dense.
1) The solutions formed different layers because each layer has different densities.
2) I think the saltiest layers would be found in the bottom of the ocean because salt is dense and it will sink.
3) Density increases or decreases as temperature changes.
4) You will find warm, fresh water on the top and colder, saltier water on the bottom. You will find warm, fresh water at the top because it is less dense and you will find colder, saltier water at the bottom because it is more dense.