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Predictions
Rank object volume and predict whether each object will float or sink.
Learn by Doing
Activity Sheet #005
Can You Find Volume Without a Ruler?
Activity Sheet
Can You Find Volume Without a Ruler? activity sheet
This printable sheet supports Activity #005 with spaces for predictions, object data, initial and final water levels, calculated volume, mass, density, float/sink results, reflection, and a Real-World Challenge.
Learn by Doing
PredictMeasureCalculateTestCompareReflect
Real-World Challenge
Activity sheet structure
A recording flow for displacement, density, and buoyancy.
Use the printable sheet after setting up the experiment so learners can capture every step of the investigation.
Water levels
Record object name, initial water level, and final water level.
Volume and density
Calculate displaced water, volume in mL and cm³, mass, and density.
Float or sink
Compare prediction with the actual test result.
Calculator check
Use the calculator only after the hand calculation is complete.
Real-World Challenge
Explain how displacement, density, and buoyant force connect to real floating objects.
Online activity
Activity #005: Can You Find the Volume of an Irregular Object Without Using a Ruler?
Follow the full online activity with illustrations, safety notes, Archimedes' principle, and the companion calculator link.