The Science Of Energy Balance Calorie Intake and Physical Activity

Bell Work 1.What is Energy? 2.Do living things require energy? 3.How do living things get their energy?

Things that living things do that use energy

Metabolism Basal Metabolism – the sum of all chemical reactions occurring in the body Basal Metabolic Rate (BMR) - The base level of energy required to maintain basic body functions Typical teens use 60 to 70 percent of their energy to maintain normal body function

Do all activities require the same amount of energy? Energy required to perform different activities varies What determines how much energy you use in a physical activity? Energy use is determined by both the intensity and the duration of the activity. Energy use is also determined by body size.

Bell Work – Wednesday 5/2 1. Explain basal metabolism. 2. What activities require a lot of energy? 3. What activities require little energy? If you forgot to finish your energy log complete it now.

Assignment – Wednesday 5/2 1.Total up each column on your activity log. Multiply by the numbers on the board to figure out your calories for each category. 2.Enter your data into the Website. The link is on my webpage – 8 th grade science – The Science of Energy Balance – The Science of Energy Balance Website Password 4 th Hour - gray th Hour - silver08207 Complete the Nutrition Webquest – By the sinks – You may work with a partner but each person must complete their own sheet.

Website Class Codes ergy/activities/activities_toc.htm ergy/activities/activities_toc.htm 1 st Hour: gray nd Hour: red th Hour: gray th Hour: silver ergy/guide/nih_energy_masters.pdf ergy/guide/nih_energy_masters.pdf

Food Calorie Equal to 1,000 calories or 1 kilocalorie (kcal) Unit of heat energy 1 kcal is the amount of energy needed to raise a liter of water 1 degree Celsius

Bell Work 1.What did you eat for breakfast? 2.Why is it important to eat breakfast everyday?

Bell Work 1.How many cups are in a serving size of frosted flakes? 2.How many Calories are in a serving size of frosted flakes? 3.David ate 2 ¼ cups of frosted flakes for breakfast, how many servings did he eat? 4.How many Calories were in the cereal that David ate?

Bell Work – Write complete sentences 1.What is Basal Metabolic Rate? 2.What happens if you eat more Calories than you burn? 3.What happens if you eat less Calories than you burn?

Sources of Energy - Food Carbohydrates – the major source of energy for the body 1 g Carbs = 4 Calories Fats – energy storage 1 g Fat = 9 Calories Proteins – used to build new body tissues, and for energy storage 1 g Protein = 4 Calories

Uses of Energy – Physical Activities

Energy Out

Bell Work 1.What is the equation for energy out? 2.What is the energy balance equation for adolescents? 3.Mary ate a meal that had 15 g of Carbs, 7 g of Fat, and 6 g of Protein, how many Calories did she eat?

Patient Board Presentation Make a Power Point with at least 5 slides with the following information to be presented to the Board Patient’s NameSave to Patient’s Questionmsstushare Summary of Analysis Bunyard Science ExplanationYour Hour RecommendationsEnergy Balance – Last Names

Bell Work Physical Activity Diary for Jon Resting / Sleeping - 6 Hours Very Light – 8.5 Hours Light – 3.5 Hours Moderate - 3 Hours Heavy - 3 Hours How many Calories did Jon use for physical activity? (show all work)

Bell Work Show your work for the following question. 1.How many Calories are in 2 1/2 servings of Fruit Loops? 2.How many of those calories are from Carbs, Fat, and Protein?

Bell Work 4 chicken nuggets at McDonalds = 190 Cal Medium Fries at McDonalds = 380 Cal Medium Coke = 210 Cal Ranch packet = 110 Cal Ketchup Packet = 15 Cal 1.How many Calories are there in 1 chicken nugget? 2.Pam ordered a 10 piece chicken nugget meal with medium fries and a medium coke. She used 2 ranch packets and 4 ketchup packets. How many Calories did she consume?

Bell Work Crunchwrap supreme – 540 Cal Cheesy Nachos – 280 Cal Medium Mountain Dew – 280 Cal Cinnamon twists – 170 Cal Hot sauce packet – 7 Cal 1.Last night for dinner Trevor ate the following meal at taco bell: Crunchwrap supreme, cheesy nachos, a medium mountain dew, and 4 hot sauce packets. How many Calories did he eat. 2.When he was finished with dinner he asked if he could have cinnamon twists, as his nutrition expert what would you tell him about having dessert with this meal?

Bell Work Write a paragraph of what you would tell an adolescent about being healthy. Be sure to include healthy Calorie intake and usage. Include the energy balance equation.

Bell Work What are your plans this summer? Write a paragraph about your goals for the summer before you begin high school.