​What type of precipitation occurs when falling snow crystals melt as they fall and then refreeze before they hit the ground? Yesterday's question was "What is the most common term for the maximum downward speed an object can attain, considering air resistance, when it is in free fall from a few miles up in the atmosphere?" The answer was terminal velocity.

​What is the most common term for the maximum downward speed an object can attain, considering air resistance, when it is in free fall from a few miles up in the atmosphere? Yesterday's question was "What is the most common term used to describe why astronauts orbiting the Earth experience apparent weightlessness?" The answer was free fall.

​What is the most common term used to describe why astronauts orbiting the Earth experience apparent weightlessness? Yesterday's question was "Eras on the Geological Time Scale are directly subdivided into what time units?" The answer was periods. 

​Eras on the Geological Time Scale are directly subdivided into what time units? Yesterday's question was "What is the mass, in grams, of 1 cubic centimeter of water at standard temperature and pressure?" The answer was 1.

​What is the mass, in grams, of 1 cubic centimeter of water at standard temperature and pressure? Friday's question was "The dinosaur known as a Brontosaurus since 1879 is correctly referred to by what name?" The answer was an Apatosaurus