To investigate the dynamics of a sphere's motion and the behavior of the air-water interface induced by the sphere, a solid sphere is launched vertically upward in water toward the air-water interface. Four spheres with different densities p p were studied: Sphere A (rho(p) = 7930 kg/m(3)), Sphere B (rho(p) = 3900 kg/m(3)), Sphere C (rho(p) = 2180 kg/m(3)), and Sphere D (rho(p) = 1360 kg/m(3)). By experimentally visualizing the sphere motion in water, their launch velocity can be set with high accuracy. When a sphere passes through the air-water interface, it makes the interface more complex and entrains water. Additionally, spheres with a small value of rho(p) were demonstrated to not always vertically collide with the air-water interface; as a result, different behaviors of spheres can be observed in the air. (C) 2020 Elsevier B.V. All rights reserved.