What Happens:
* Gravity: The most immediate effect is gravity. The liquid will fall downwards, forming a puddle or a stream depending on the surface it lands on and the volume of the liquid.
* Surface Tension: Liquids have surface tension, which causes them to minimize their surface area. This will lead to the liquid forming a spherical shape (think raindrops), if possible.
* Evaporation: Liquids will evaporate at a rate dependent on their volatility, temperature, and atmospheric pressure. This means the liquid will slowly turn into a gas and disappear.
* Diffusion: If the liquid is in contact with another substance, it will diffuse into that substance at a rate determined by its concentration and the properties of the two substances.
Examples:
* Water spilled on the ground: It forms a puddle, spreads out due to surface tension, and evaporates over time.
* A river flowing: Water is constantly flowing due to gravity and the slope of the land, while some evaporates into the air.
* A drop of ink in water: The ink will diffuse into the water, spreading out and eventually becoming evenly distributed.
Important Note: Liquids are often contained for a reason. Without containment, they can be messy, spill, and evaporate quickly.
