Density
In this activity, students are introduced to the concept of density. They calculate the volume of various materials to determine and then rank their densities.
By the end of this activity, students should be able to:
discuss how all matter is made up of particles
discuss that density is a measure of how closely these particles are packed together
discuss that the tighter the packing, the more dense the material
explain that density is measured in units of mass per unit volume
use formulae to determine density and volumes.
Download the Word file for:
introduction/background notes
what you need
what to do
discussion questions.
Measuring salinity
Dr Mike Williams from NIWA explains how the density of the seawater is measured, by looking at the conductivity and temperature of the water.
Related content
Discover more about water denisity and then use the article Ocean density to further explore how salinity, temperature and depth all affect the density of seawater.
