Year 4 Science – Does gas have weight?

Oct 8, 2023Science

In recent weeks, we have been investigating the three states of matter: solids, liquids and gases. We have worked together to become the particles in these states, whizzing around as gas particles and staying in a rigid structure for solids, whilst moving around close together to show liquids.

By investigating the weight of bottles of pop before and after we shook them up and let the gas out, we have discovered that gas has weight! We weren’t sure to begin with since the gas is invisible, but all of the bottles were at least 2g lighter after we let the gas out!