* Gravity is a fundamental force: It acts between any two objects with mass, regardless of their state of matter.
* Gas and liquids have mass: While they might not have a fixed shape like solids, they still contain particles that have mass.
* Even light is affected: While light itself is massless, it has energy, and according to Einstein's famous equation E=mc², energy and mass are equivalent. Therefore, even light can be bent by gravity.
Examples of gravity affecting non-solids:
* The atmosphere: The Earth's gravity holds our atmosphere in place, preventing it from drifting off into space.
* Water in a river: Gravity pulls water downhill, creating rivers and streams.
* The movement of planets: Gravity keeps planets in orbit around the Sun.
* Black holes: Black holes have such strong gravity that even light cannot escape their pull.
So, gravity is a universal force that affects everything with mass, not just solids.
