Measurement and Accuracy
Procedure
Obtain 5 large test tubes (all the same size), a test tube rack, 3 beakers of colored water A-C, and 3 graduated cylinders.
With a Sharpie, label the tubes 1-5
Measure 25 mL of solution from beaker A (red) using a clean graduated cylinder. Pour into tube 1.
Measure 28 mL of solution from beaker B (yellow) using a clean graduated cylinder. Pour into tube 3.
Measure 22 mL of solution from beaker C (blue) using a clean graduated cylinder. Pour into tube 5.
Pour 8 mL of solution from tube 3 into a clean graduated cylinder and add it into tube 4.
Pour 7 mL of solution from tube 5 into a clean graduated cylinder and add it into tube 4. Mix the solution by swirling the tube.
Pour 10 mL of solution from tube 1 into a clean graduated cylinder and add it into tube 2.
Pour 5 mL of solution from tube 3 into a clean graduated cylinder and add it into tube 2. Mix the solution by swirling the tube.
Data Sheet
Test tube
Color observed
Volume contained in tube at the end
1
2
3
4
5
For the column above labeled âVolume contained in the tube at the endâ, calculate the volume that each solution should contain. After completing your calculations, do your test tubes appear to match your math?
If not, give an explanation of why they would be different.
Compare your tube 2 with two other groupsâ tube 2, are they the exact same shade of color?
If not, give an explanation of why they would be different.
If the colors are different, which group has the ârightâ color? How did you determine this?
Measurement and Accuracy
Procedure
Obtain 5 large test tubes (all the same size), a test tube rack, 3 beakers of colored water A-C, and 3 graduated cylinders.
With a Sharpie, label the tubes 1-5
Measure 25 mL of solution from beaker A (red) using a clean graduated cylinder. Pour into tube 1.
Measure 28 mL of solution from beaker B (yellow) using a clean graduated cylinder. Pour into tube 3.
Measure 22 mL of solution from beaker C (blue) using a clean graduated cylinder. Pour into tube 5.
Pour 8 mL of solution from tube 3 into a clean graduated cylinder and add it into tube 4.
Pour 7 mL of solution from tube 5 into a clean graduated cylinder and add it into tube 4. Mix the solution by swirling the tube.
Pour 10 mL of solution from tube 1 into a clean graduated cylinder and add it into tube 2.
Pour 5 mL of solution from tube 3 into a clean graduated cylinder and add it into tube 2. Mix the solution by swirling the tube.
Data Sheet
Test tube | Color observed | Volume contained in tube at the end |
1 | ||
2 | ||
3 | ||
4 | ||
5 |
For the column above labeled âVolume contained in the tube at the endâ, calculate the volume that each solution should contain. After completing your calculations, do your test tubes appear to match your math?
If not, give an explanation of why they would be different.
Compare your tube 2 with two other groupsâ tube 2, are they the exact same shade of color?
If not, give an explanation of why they would be different.
If the colors are different, which group has the ârightâ color? How did you determine this?