Entry-level medical education programs are tertiary-level courses undertaken at a medical school. Depending on jurisdiction and university, these may be either undergraduate-entry (most of Europe, India, China), or graduate-entry programs (mainly Australia, Canada, United States).
1 hail: precipitation in the form of balls or irregular lumps of ice (5 mm or more in diameter âanything smaller is considered an âice pelletâ). 2  snow: precipitation composed of white or translucent ice crystals, chiefly in the form of snowflakes.  sleet: a mixture of rain and snow.
Sleet is much more benign. Sleet forms when precipitation starts falling out of the clouds as snow, but encounters a warm layer of air (above freezing) on the way down. The snow melts into rain, but then the rain falls into a colder layer of air near the ground (below freezing). The rain freezes back into ice pellets.