How is matter different from mass? These and other questions about the deepest levels of physics, answered inside.

In this episode, Dr Sunayana Bhargava and Tulela Pea explore the states of matter ... Liquids have weaker forces between their particles, which allows them to move around each other and therefore ...

Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between ... They have no fixed volume and fill the space of their ...