Even when liquids change their shape, they always take up the same amount of space. Their volume stays the same. Examples of gases include steam, helium and oxygen. They are often invisible.

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 ...

It turns out that any material, no matter what it is made of, can exist in one of three forms: solid, liquid or gas. These are categories of stuff that have certain observable properties.

When a liquid-fuel rocket takes off, it can switch its gas jet from side to side, correcting any tendency to veer off course. But solid-fuel rockets have no separate combustion chamber ...

The unique structure of PAMs has the potential to transform industries, from healthcare to robotics, by offering properties never before seen in materials science. PAMs represent a bold step forward ...

Superionic materials are a class of materials that simultaneously present properties that are characteristic of solids and ...

Discovering a new class of matter in the lab of Chiara Daraio at Caltech, researchers have identified a type of material that uniquely responds to stress, behaving like a fluid under some conditions ...

Students explore the attractions and motion of atoms and molecules as they experiment with and observe the heating and cooling of a solid, liquid, and gas.

The density of solid iron = 7.8 g/cm 3 The density of liquid iron = 6.9 g/cm 3 A substance evaporates when it changes from the liquid state to the gas state. Its particles move freely and are very ...