A popular topping for pancakes, waffles, French toast, and the like, maple syrup comes from the sap of sugar maple and black maple trees. In springtime, taps inserted in the trees begin flowing with sap, which is collected, strained, and concentrated by boiling. Native Americans were the first to prepare syrup from maple sap, using hot rocks or freezing to concentrate the sap. They shared their methods with arriving colonists—and the rest is history. What is produced by boiling down maple syrup? Discuss