Density Column Lab1- Watch video - https://www.youtube.com/watch?v=4EMUsPJtCoc2. Record your observations - include a drawing!
3. COPY AND COMPLETE IN NOTEBOOK
HERE'S A ROUGH DRAFT FOR YOUR FORMAL LAB REPORT
Problem: Will a rubber duck with a density of .4 g/cm3 float on water?
Materials: 4 plastic cups (3 marked with a 20ml line)
1 small and 1 large Glass beaker
1 drop food coloring – red
30 ml water 20 ml corn oil
20 ml corn syrup 20 ml glycerin
Solid object – (record mass ____ and volume _____ = _________ g/cm3)
Procedure: 1. Measure out 30 ml of water and add 1 drop of food coloring with small beaker.
2. Empty the colored water into the large beaker.
3. Separately measure out 20 ml of the three remaining liquids.
4. Empty each into the large beaker - one at a time.
5. Wait for liquids to settle and note observations.
6. Drop your solid object into the beaker and record your observations.
Observations: Draw beaker and describe ALL observartions – before, after and
Conclusion:3. COPY AND Complete ALL QUESTIONS below.
Density Column Lab
Object: Rubber Duck .4g/cm3
Densities for Liquids
Rubbing alcohol (blue)
0.87 g in 1 mL
1.00 g in 1 mL
Vegetable oil (yellow)
0.91 g in 1 mL
1.26 g in 1 mL
Dawn dish washing liquid
1.03 g in 1 mL
- Which liquid must you place first in the column so that none of the liquids will mix with each other? Explain your reasoning.
Determine the density of your object by dropping it into the column and answering the following questions:
- What is the liquid just above the object?
- What is the liquid just below the object?
- What must be the range of the object’s density?
The density must be between: and g in 1 mL.
- Explain how you knew to estimate the density of the object.
- How much mass is there in 10 mL of water? Explain or show your math.
- How much volume does 2.06 g of Dawn dish washing liquid take up? Explain or show your math.