Understand How to Test for Solids

Solid materials are everywhere in our environment.

They have many, many different properties: hard, shiny, bendy, colourless, soft, odourless (no smell), etc..

But, we could also describe some liquids and gases using the same words.

So, how do scientists 'test' materials to classify them as solids?

Bricks, trainers and keys are all solid, but so is sand, which appears to be very different!

So, that's going to be tricky, isn't it?

Let's take a closer look!