Most substances can exist as a solid, liquid or gas. They can change state, usually when they are heated or cooled. For example, liquid water turns into water vapour when it is heated enough ...

Although the three states of matter are solid, liquid, and gas, not all substances seem to fit perfectly into one of these groups. Take a look at the substance below and see if you can decide whether ...

In a gas, the particles aren’t touching at ... changing from a solid to a liquid, for example. This basic model is, however, just that: there are many, many more states of matter out there ...

In a gas, like helium ... which are life-sized examples of a scientific model. Shear-thickening liquid is an unusual liquid that can be slowly poured but acts like a solid if quickly struck.