Name______

Period ______

Sugar Density Lab

Question: How does sugar affect the density of the liquid in soda?

Hypothesis: ______.

Materials: Triple Beam Balance, 400 mL Beaker, Granulated Sugar, Spoon, Tap Water

Procedures:

  1. Measure the mass of emptybeaker on the Triple Beam Balance, and record in the “empty beaker” column of the data table. You may use this mass for the “empty beaker”each time, unless you change beakers.
  2. Fill the 400 mL beaker to the 250 mL line with Tap Water. Measure the mass of the full beaker, and record in the “full beaker” column in the data table below. Make sure to include grams (g) after each measurement. **If water drops onto the scale, dry it gently with a paper towel before measuring.
  3. Subtract the empty container amount from the full container amount to get the mass of the liquid. Record the calculation in the “Just Liquid” column.
  4. Calculate density by dividing the “Mass of the Water” by the “Volume”. Round to the second decimal place. Record this number under “Density.” This number represents the amount of matter, or mass (g) in a given space, or volume (mL), and therefore, g/mL should be written after each number in the density column.
  5. Empty your beaker and rinse before starting the next trial.
  6. Put 2 spoonsful of sugar into the now empty and dry 400 mL beaker.
  7. Fill the beaker with water to the 250 ml line. Measure the mass of the full beaker, and record in the “Full Beaker” column in the data table below. Make sure to include grams (g) after each measurement. **If water drops onto the scale, dry it gently with a paper towel before measuring.
  8. Subtract the empty container from the full container to get the “Just Liquid” mass. Record the calculation in the “Just Liquid” column.
  9. Calculate density by dividing the “Just Liquid” by the “Volume”. Round to the second decimal place. Record this number under “Density.” This number represents the amount of matter, or mass (g) in a given space, or volume (mL), and therefore, g/mL should be written after each number in the density column.
  10. Repeat steps 6 – 9 changing the amount of sugar added each time.

Hypothesis: ______.

Mass (g) / Volume (mL) / Density (g/mL)
Trial / Full Beaker / Empty Beaker / Just Liquid
1 / No sugar
2 / 2 teaspoons of sugar
3 / 4 teaspoons of sugar
4 / 6 teaspoons of sugar

Data Table: Mass, Volume and Density of Your Sample of Water

Make a line graph of your data.

  1. What are some possible errors that might have affected your data?
  1. How did sugar affect the density of the liquid in the bottles?
  1. Why would this be a considered “experimental design”?