Chapter 3 Resource: Matter and its Changes

Name Date Class
Laboratory Activity 1 (continued)
Hands-On Activities
8. Add water to the graduated cylinder until
it is about half full. Read the volume of
water in the graduated cylinder and
record it in Table 2 as the original volume
of water.
9. Tilt the graduated cylinder slightly and
carefully slide Rock A into the graduated
cylinder. Be careful not to splash any
water out of the graduated cylinder.
10. Read the water level in the graduated
cylinder again. Record the volume in
the table.
Data and Observations
Table 1
11. Find the volume of the rock by subtracting
the original volume of water from the new
volume of water and the rock. Record the
rock’s volume.
12. Calculate the density of Rock A by dividing
its mass by its volume. Record the density
in the table.
13. Repeat steps 8 through 12 for Rock B.
Block Mass Length Width Height Volume Density
(g) (cm) (cm) (cm) (cm3) (g/cm3)
A
B
C
Table 2
Mass (g)
Original volume of water (mL)
Volume of water after adding rock (mL)
Volume of rock (mL)
Density (g/mL)
Rock A
Questions and Conclusions
1. Are any of the metal blocks made of the same substance How do you know
Rock B
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10 Matter and Its Changes