Is it possible to return the gunpowder back to its original form (before it was set on fire)? How?

Identify and describe the three ways that mutations affect organisms.

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

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.