Physics for IGCSE & O level - Measurements And Units (Section 5 - No. 7)

What does the revision checklist suggest is a core level concept?

Using density data to predict whether a material will sink or float

Finding the volume of a regular solid

Measuring the density of a regular solid

Using the equation linking density, mass, and volume

Using the equation linking density, mass, and volume is listed as a core level concept.