When cold air moves under warm air, a cold front forms. The steep slope of the cold fronts tends to suddenly push the air up and create vertical clouds. Given this information which of the following cloud types and weather conditions would most likely result from a fast moving cold front?

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.