Scientists are studying different jackets made for extremely cold, snowy weather. they are trying to find jackets that are warm but also thin enough to allow for natural bodily movement. which question could the scientists answer scientifically? which jacket's color looks the best? which jacket traps the most heat? would warm and thin jackets cost less? which jacket seems the most professional?

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.