1. Make sure the fluid is set to water, click "Turn Fluid into Water," at the top-left of the lab simulation.
2. Measure the mass of each material in the table by clicking on each material at the bottom-right of the lab simulation, then by clicking, holding, and dragging the material onto the scale to find the mass. Record these masses in the table, where appropriate.
3. Measure the volume of each material by the displacement method. First, note the initial volume of the water in the beaker. Second, click on each material at the bottom-right of the lab simulation, then click, hold, and drag the material into the beaker holding the water. Measure the new volume of the water, after it stops moving. Record each of these volumes in the table, where appropriate.
4. Subtract the initial volume from the new volume to determine the volume of each material. Record this volume in the table, where appropriate.
5. Determine the density of each material using the density formula and a calculator. Record the density of each material in the table, where appropriate.
d = mass/volume
Gold (Au):
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Iron (Fe):
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Lead (Pb):
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Wood:
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Foam:
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Rubber:
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Ice:
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
Unknown (????):
Mass (g) =
Initial volume (mL) =
Final volume (mL) =
Volume of substance (mL) =
Density (g/mL) =
What variable was held constant throughout this lab?
What variable was not a constant (it changed) during this lab?
Which substances sunk to the bottom of the water when placed in the beaker?
Which substances stayed on top of the water when placed in the beaker?
Use an internet search to determine the density of distilled water.
Create a list of every item that floated in the water with their calculated density.
Create a list of every item that sunk in the water with their calculated density.
Compare the densities of water, the densities of those items that floated, and the densities of those items that sunk. What pattern can you identify; do you think this pattern is related to the behavior of sinking or floating in water?
Discuss one or two things that you learned or confusions that were cleared up in this activity.
📚 Poll: How confident do you feel about the material we covered in today's lesson? Please select the emoji that best reflects your level of understanding.