Looking at porosity

Year 5 have been looking at how gases spread out to fill all available spaces. We looked at 3 different 'soils' to see which one contains the most air.

We carefully measured 50ml of water:

We put our soil sample into a small beaker until it reached the 50ml line. Then we slowly poured the water into the soil until no more would sink into the sample.

We tested sand:

Soil:

Marbles:

And then we sat down to write about our findings: