A. TITLE-
Measuring Matter
B. PURPOSE -
How can we measure the mass, volume and calculate the density of
liquids and solids?
C. HYPOTHESIS - We can measure matter using a TBB and a GC.
D. MATERIALS - Triple Beam Balance (TBB) , Graduated Cylinder (GC), Beakers, Water,
Eyedropper, Bucket, 12 solid objects.
E. PROCEDURE- 1. Zero balance TBB.
Part 1
2. Find the mass of a dry beaker. Record at top of 1st data chart.
3. Move TBB beams to designated grams as listed on chart.
4. Add water to beaker until TBB balances.
(Use an eyedropper to be exact)
5. Carefully pour this water into a GC and measure the volume.
(Remember the meniscus)
6. Repeat procedure for all 10 volumes.
7. Calculate % error for each object and then for total of all objects.
Part 2
1. Zero balance TBB.
2. Take an object from the 2nd data chart and find its mass on the TBB.
Record on data chart.
3. Fill GC up to 70ml.
4. Tilt GC slightly and gently drop the object into the water.
5. Measure its volume through water displacement. Round to the nearest
half (0.5) milliliter.
Record on data chart.
6. Repeat for all 12 objects.
7. Calculate the density of each object using the formula (D=m/v)
8. Set up a double bar graph of the objects mass in g and volume in ml.
9. Set up a line graph of the objects mass vs. volume.
10. Answer the conclusion.