Why does water form a spherical shape when we used to drop water up or throw water around?

Water tends to form a spherical shape when it is dropped or thrown because of the forces of gravity and surface tension. These forces work together to minimize the surface area of the water droplet, and a sphere is the shape that minimizes surface area for a given volume.

Gravity: Gravity is constantly pulling objects toward the center of the Earth. When you release a droplet of water or throw it into the air, gravity acts as a force that tries to pull the water downward. The water molecules accelerate as they fall due to gravity, and this acceleration causes the droplet to deform. It initially forms a tear-like shape due to air resistance, but as it falls and air resistance becomes less significant, gravity still acts to compress the droplet into a more compact form.

Surface Tension: Water molecules are attracted to each other due to a phenomenon called surface tension. This attraction causes the water molecules at the surface of the droplet to "stick" together. In the absence of other forces, water would naturally form into a shape that minimizes its surface area to reduce the amount of energy required to maintain this attractive force between its molecules. A sphere is the shape that minimizes the surface area for a given volume, making it the most stable shape for a water droplet.

So, as a water droplet falls or is thrown through the air, it undergoes deformation initially due to air resistance and gravity. However, as gravity continues to act on it, the surface tension dominates and pulls the droplet into a spherical shape, which minimizes its surface area, thereby reducing the overall energy of the system. This is why water droplets tend to form spherical shapes in freefall or when thrown.