The mechanism of a polyvinyl-chloride cement (PVCC) drop movement on the natural water surface in the temperature range of 18–65 degrees Celsius was experimentally investigated. The dependence of the velocity of translational and rotational motion of the drop on the temperature of the water and the shape of the drop was studied. The thermodynamic water temperature was measured by a contact thermometer immersed in the water column. The measurements were carried out indoors at an ambient temperature of about 24 degrees Celsius. A noticeable increase of the drop velocity of the thermodynamic water temperature was detected in an investigated temperature range. It was shown that the translational and rotational motion of the drop arises from the Marangoni effect. An additional contribution to the nature of the movement gives the disordered reactive emissions of a substance through the surface of a PVCC drop. The translational velocity of the drop, its angular velocity and angular acceleration were measured by fast video recording. It is shown that the effect of reactive forces acting on a drop of PVCС can be neglected in comparison with the action of forces arising from the Marangoni effect. The PVCС drop movement, when interacting with water has been studied under various experimental parameters and different drop geometries.