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.

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 ...

This means that cats should be classified as liquids, right? The question is not so easy to answer. “If we wait long enough, ...

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 ...

Caltech researchers have developed PAMs, a novel material that blends the properties of solids and liquids, making them ...

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 ...