I also did some work on laboratory scale {\it impact cratering}. Impact cratering is an important geological process that has affected the surface of nearly every planet and satellite in the solar system. Most laboratory models up to date have investigated impact cratering at high impact velocities, $50$~m/s up to $50$~km/s. It has been proposed that the crater morphology is highly dependent on the size and velocity of the projectile as well as the relative density and strength between the target and projectile. First of all, I conducted a series of experiments involving spherical sand ball impact on a hard flat surface to study the defomation of the sand sphere and the final state cluster size (see Figure~3 (a)). Further, I performed a series of normal impacts of single spherical projectile on a thick layer of sand with a flat surface with impact velocities between $3$~m/s to $10~m/s$. I discovered that, as in high speed impact, low speed impact also induces a conical plume that progressively widens at the base with respect to time (see Figure~3 (b)). to scale laboratory measurements of ejecta to larger events. The sand using here consists of Ballotini$^{\hbox{\tiny\copyright}}$ impact beads sieved between 0.18~mm and 0.21~mm, the individual grain density is $2.38$~g/cm$^3$.