Materials:
* The rock: The object you want to measure.
* Graduated cylinder: A container with markings to measure the volume of liquids.
* Water: To displace and measure the volume of the rock.
* Scale: To measure the mass of the rock.
Procedure:
1. Measure the mass of the rock: Place the rock on the scale and record its mass in grams (g).
2. Measure the initial volume of water: Pour a known volume of water into the graduated cylinder. Record the initial volume in milliliters (mL).
3. Submerge the rock: Carefully place the rock into the graduated cylinder, making sure it is fully submerged.
4. Measure the final volume: Observe the new water level in the graduated cylinder after the rock is submerged. Record this final volume in milliliters (mL).
5. Calculate the rock's volume:
* Volume of the rock = Final volume (mL) - Initial volume (mL)
6. Calculate the density:
* Density = Mass (g) / Volume (mL)
Example:
* Mass of rock = 50 g
* Initial volume of water = 25 mL
* Final volume of water (with rock) = 45 mL
* Volume of the rock = 45 mL - 25 mL = 20 mL
* Density = 50 g / 20 mL = 2.5 g/mL
Important Notes:
* Make sure the rock is completely submerged in the water. Any air bubbles will affect the volume measurement.
* The density of the rock will be expressed in units of grams per milliliter (g/mL) or grams per cubic centimeter (g/cm³), since 1 mL = 1 cm³.
Let me know if you have any more questions!
