Respuesta :
In the first tray, the ice flow was approximately 6 inches long. After the ice melted, the sand in the first tray was wet and more compacted compared to the sand in the second tray, which remained dry and loose.
The sand depth in the first tray at the beginning of the experiment was 10 inches, and at the end, it was reduced to 9.5 inches. In the second tray, the sand depth at the beginning was also 10 inches, and at the end, it remained the same at 10 inches.
Erosion took place in the first tray as the sand depth decreased by 0.5 inches, indicating the removal of sand particles by the melted ice flow. In the second tray, no erosion occurred as the sand depth remained unchanged.
If the trays were propped up two inches, the results would likely change. With the trays propped up, the melted ice flow may create a larger erosion pattern on the sand, possibly resulting in a larger decrease in sand depth in both trays. Additionally, the angle of the trays may affect the direction and distribution of the erosion pattern on the sand. The sand in the trays may also become more compacted due to the force of gravity pulling it downwards. Overall, propping up the trays may lead to more noticeable erosion and a greater change in the sand depth.
