Question

test your knowledge 2
use atwater factors and the provided table to rank the snacks from highest number of calories to lowest number of calories.

snack	fat (g)	carbohydrates (g)	fiber (g)	protein (g)
potato chips	15	23	1	3
graham crackers	3	24	1	2
granola bar	3	17	1	1

highest number of calories
graham crackers
pretzels
granola bar
potato chips
lowest number of calories

Explanation:

Step1: Recall Atwater factors

Calories from fat = fat (g)×9, calories from carbohydrates = (carbohydrates - fiber) (g)×4, calories from protein = protein (g)×4.

Step2: Calculate calories for Pretzels

Calories from fat = 0×9 = 0. Calories from carbohydrates=(23 - 1)×4=88. Calories from protein = 3×4 = 12. Total calories = 0 + 88+12=100.

Step3: Calculate calories for Potato chips

Calories from fat = 15×9 = 135. Calories from carbohydrates=(23 - 1)×4=88. Calories from protein = 3×4 = 12. Total calories = 135+88 + 12=235.

Step4: Calculate calories for Graham crackers

Calories from fat = 3×9 = 27. Calories from carbohydrates=(24 - 1)×4=92. Calories from protein = 2×4 = 8. Total calories = 27+92 + 8=127.

Step5: Calculate calories for Granola bar

Calories from fat = 3×9 = 27. Calories from carbohydrates=(17 - 1)×4=64. Calories from protein = 1×4 = 4. Total calories = 27+64 + 4=95.

Step6: Rank the snacks

Potato chips (235 calories)>Graham crackers (127 calories)>Pretzels (100 calories)>Granola bar (95 calories).

Answer:

Potato chips, Graham crackers, Pretzels, Granola bar