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# 7.3: Activities and Answer Keys

Difficulty Level: At Grade Created by: CK-12

## Activity 6-1: You Are the Food Expert

### PLAN

Summary Students examine the nutrients in fast food and create a healthy meal.

Objectives

Students:

\begin{align*}\checkmark\end{align*} determine the nutrient levels of fast foods.

\begin{align*}\checkmark\end{align*} determine whether fast foods meet the RDA guidelines.

Student Materials

• Activity Report
• Food Nutrient Chart, p. 60 of the Student Edition (Or use Resource 2: Food Nutrient Chart in Activity 1-1: Are You What You Eat?)
• Resource: Recommended Dietary Allowances (RDA)
• Fast food nutrition information

Teacher Materials

• Food Nutrient Chart, p. 60 of the Student Edition (Or use Resource 2: Food Nutrient Chart in Activity 1-1: Are You What You Eat?)
• Resource: Recommended Dietary Allowances (RDA)
• Fast food nutrition information

Collect fast food menus and nutritional information from various fast food restaurants.

Estimated Time One 45- 50 minute class period

Interdisciplinary Connections

Health This activity could be done in health education.

Math Review computational skills needed in this activity.

Prerequisites and Background Information

No special knowledge is required.

### IMPLEMENT

Introduce Activity 6-1 by discussing the Resource.

Steps 1-2 After students have filled out Tables A and B, ask the question “Why does Table B reflect healthier choices than Table A?”

Give Table A to a group to fill in using a particular fast food chain's information with instructions to choose the worst combinations of food. Then trade Activity Reports with another group along with the fast food information and the challenge to make the choices the healthiest possible.

• This activity works best when students are able to choose from various fast food chain menus.
• Encourage students to choose the “worst” food combinations for Table A.

### ASSESS

Use the completion of the chart and written responses on the Activity Report to assess if students can

\begin{align*}\checkmark\end{align*} determine the percentages of calories (Cal) from carbohydrates, proteins, and fats in fast foods.

\begin{align*}\checkmark\end{align*} determine whether fast foods meet the RDA guidelines.

## Activity 6-1: You Are the Food Expert – Table A Answer Key

Student Food Table A: Favorite Food

Fast Food Restaurant

Nutrients Protein Carbohydrates Fat
Food Total Calories grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 9)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*}
1. Double Deluxe Burger w/Cheese 941 47 188 19.98 33 132 14.03 69 621 65.99
2. Jumbo Fries 395 5 20 5.06 51 204 51.65 19 171 43.29
3. Milk Shake 327 11 44 13.46 55 220 67.28 7 63 19.27

Key

C = Calories

TC = Total Calories

For RDA Guidelines Information:

Table A:

Answers will vary, but these foods probably will not be within RDA Guidelines.

Table B:

Answers will vary, but these foods probably will be within RDA Guidelines.

## Activity 6-1 Report: You Are the Food Expert – Table B Answer Key

Student Food Table B: Food Modified

Fast Food Restaurant

Nutrients Protein Carbohydrates Fat
Food Total Calories grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 9)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*}
1. Cheeseburger 326 15 60 18.40 35 140 42.94 14 126 38.65
2. Regular Fries 263 11 44 16.73 30 120 45.63 11 99 37.64
3. Soft Drink 200 0 0 0 50 200 100.00 0 0 0
4. Side Salad 39 3 12 30.77 0 0 0 3 27 69.23
5. Low-Cal Dressing 34 2 8 23.53 2 8 23.53 2 18 52.94
Totals 862 31 124 14.39 117 468 54.29 30 270 31.32

Key

C = Calories

TC = Total Calories

• Sample answers to these questions will be provided upon request. Please send an email to teachers-requests@ck12.org to request sample answers.
1. What factors can you control that will help you stay healthy?
2. What are some of the benefits of regular exercise? Why is exercise important?
3. In what way does vigorous exercise shortly after eating affect digestion?
4. Describe some ways in which the body responds to stress. In what ways does stress affect digestion?

## Activity 6-1 Resource: You Are the Food Expert (Student Reproducible)

Recommended Dietary Allowances
Boys 11-14 Girls 11-14
Energy 2,500 Calories 2,200 Calories
Carbohydrate \begin{align*}134 \ g\end{align*} \begin{align*}138 \ g\end{align*}
Protein \begin{align*}45 \ g\end{align*} \begin{align*}46 \ g\end{align*}
Fat \begin{align*}84 \ g\end{align*} \begin{align*}75 \ g\end{align*}
Vitamin A \begin{align*}1,000 \ mcg\end{align*} \begin{align*}800 \ mcg\end{align*}
Vitamin C (ascorbic acid) \begin{align*}50 \ mg\end{align*} \begin{align*}50 \ mg\end{align*}
Vitamin D \begin{align*}10 \ mcg\end{align*} \begin{align*}10 \ mcg\end{align*}
Vitamin E \begin{align*}10 \ mg\end{align*} \begin{align*}8 \ mg\end{align*}
Niacin \begin{align*}17 \ mg\end{align*} \begin{align*}15 \ mg\end{align*}
Riboflavin \begin{align*}1.5 \ mg\end{align*} \begin{align*}1.3 \ mg\end{align*}
Thiamin \begin{align*}1.3 \ mg\end{align*} \begin{align*}1.1 \ mg\end{align*}
Vitamin B-6 \begin{align*}1.7 \ mg\end{align*} \begin{align*}1.4 \ mg\end{align*}
Vitamin B-12 \begin{align*}2 \ mcg\end{align*} \begin{align*}2 \ mcg\end{align*}
Vitamin K \begin{align*}45 \ mcg\end{align*} \begin{align*}45 \ mcg\end{align*}
Calcium \begin{align*}1,200 \ mg\end{align*} \begin{align*}1,200 \ mg\end{align*}
Phosphorus \begin{align*}1,200 \ mg\end{align*} \begin{align*}1,200 \ mg\end{align*}
Iodine \begin{align*}150 \ mcg\end{align*} \begin{align*}150 \ mcg\end{align*}
Iron \begin{align*}12 \ mg\end{align*} \begin{align*}15 \ mg\end{align*}
Magnesium \begin{align*}270 \ mg\end{align*} \begin{align*}280 \ mg\end{align*}
Selenium \begin{align*}40 \ mcg\end{align*} \begin{align*}45 \ mcg\end{align*}
Zinc \begin{align*}15 \ mg\end{align*} \begin{align*}12 \ mg\end{align*}
Folate \begin{align*}150 \ mcg\end{align*} \begin{align*}150 \ mcg\end{align*}

\begin{align*}g & = gram\\ 1 \ g & = 1,000 \ mg = 1,000,000 \ mcg\\ mg & = \text{milligram}, \frac{1}{1,000} \ \text{of a gram}\\ mcg & = \text{microgram}, \frac{1}{1,000,000} \ \text{of a gram}\end{align*}

## Activity 6-1 Report: You Are the Food Expert (Student Reproducible)

Student Food Table A: Favorite Food

Fast Food Restaurant

Nutrients Protein Carbohydrates Fat
Food Total Calories grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 9)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*}
1.
2.
3.
4.
5.
Totals

Key

C = calories

TC = Total calories

Protein Carbohydrates Fat
RDA Guidelines (Yes/No) (Yes/No) (Yes/No)
Are the nutrients in this meal within recommended RDA Guidelines?

Student Food Table B: Favorite Food Modified

Fast Food Restaurant

Nutrients Protein Carbohydrates Fat
Food Total Calories grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 4)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*} grams Calories \begin{align*}(g \times 9)\end{align*} Percent \begin{align*}\left (\frac{C}{TC} \times 100 \right )\end{align*}
1.
2.
3.
4.
5.
Totals

Key

C = calories

TC = Total calories

Protein Carbohydrates Fat
RDA Guidelines (Yes/No) (Yes/No) (Yes/No)
Are the nutrients in this meal within recommended RDA Guidelines?

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