Chew the Fat - 8th Grade Physical Science



Chew the FatNorth Carolina Science Olympiad, Elementary GradesEvent Leader Directions:Chew the Fat is three topics broken down into six activities:MyPlate – 1 activityFood Labeling – 2 activitiesDigestive System – 3 activitiesSetting up the event:Event leaders should set up:1) Desk space for every team with the following items.a. Test packet.b. Calculator (Food labeling activity)c. One roll of toilet paper (Digestion activity)d. To minimize the amount of equipment need for the event, event leaders will set up 1 hands-on Digestion station (for toilet paper activity) and 1 hands-on MyPlatestation at easily accessible places in the room.MyPlate Station - Bring package with nutrition fact label and/or whole food.i. 2 vegetableSuggestion:Broccoli frozen with sauceFresh broccoliii. 2 fruitSuggestion:Heavy syrup canned peachesFresh peachiii. 3 grainSuggestion:Brown riceRegular noodlesWhite breadiv. 3 dairySuggestion:Skim milkWhole milkIce creamv. 3 proteinSuggestion:BeansChicken nuggetsc. HotdogCoordinating the event:Student teams entering the event should sit at individual team testing stations. Once everyone is seated, event leaders should read the following directions:1) Teams should keep their eyes and ears on their own papers and activities.2) Each team should have the following at their desk.Test packetCalculator (Food labeling activity)One roll of toilet paper (Digestion activity)3) Test packets are in the following order.MyPlate – 1 activityFood Labeling – 2 activitiesDigestive System – 3 activities4) Go Long!andMyPlate will require that teams get up and move to stations to complete activities. The event leader will let you know when it is time for your team to go do the go to the Go Long!andMyPlate station.5) When selected, stop what you are doing at your desk.6) Take your test packet and move to the Go Long!station and then the MyPlatestation.Only do the hands-on activity while you are at the station.Move quickly as other teams will need to follow.If the task takes you longer than 4 minutes, event leaders may ask you to move on to the next station.7) When you have finished with both stations, return to your seat and keep taking the testing.8) Before turning in the test packet to the event leader, make sure your team has completed all tasks and all questions.Congratulations! You have completed Chew the Fat.Scoring the event:Attached to this sheet will be an answer key.For easy scoring of the toilet paper digestion activity, have a piece of yarn already measured to the correct length to compare to the toilet paper that teams leave on their desk. Score students by ranking them 3 = Correct (within a foot), 2 = close (within 2 feet), 1 = somewhat correct (within 3 feet), or 0 = not close or incorrect.Final scoring will rank the team in accordance with Science Olympiad rules.North Carolina Science OlympiadChew the FatSchool Name:___________________________________Student Names:________________________, ________________________**Do NOT open this packet until you are told to do so!**Activity 1:What’s on MyPlate?MyplateNorth Carolina Science OlympiadWhile all foods can be part of a healthy diet, using the foods provided by the event leader, make a healthy plate. Once you have picked the “best” or “most healthy” foods for each group, record the name of the food in the correct space on the plate. Return to your desk.Activity 1:Getting Your Facts StraightFood LabelingNorth Carolina Science OlympiadYou will compare the Nutrition Facts labels on two different snack food labels below.After looking at the names of the snacks provided, predict which snack you think is the best option and why.Prediction: 06985001. Classic Potato Chip2. Baked Potato Chip925195497459000A. Working with labelsDraw a circle around Total Fat on each nutrition facts label.Draw a square around Saturated Fat on each nutrition facts label.Draw a triangle around Sodium on each nutrition facts label.Draw a star next to the nutrition facts label with the most fiber.B. Wrap it upUse the nutrition facts labels to complete the chart below. Draw an “X” next to the best answer.Which snack is the best option if you wanted to:Snack 1Snack 2Reduce Total Fat IntakeReduce Saturated Fat intakeReduce Sodium intakeIncrease Fiber intakeC. Check your predictionCircle one1. Look at the chart above. Is there 1 snack that has the lowest total fat, saturated fat, and sodium? YESNOActivity 2:Learning From Your LabelsFood LabelingNorth Carolina Science OlympiadYou will read the Nutrition Facts labels below to find the following:Total Calories:1.2.Total Carbohydrate(grams):1.2.Total Fat(grams):1. 2. 1. Classic Potato Chips2. Baked Potato ChipsNext, you will calculate the calories from saturated fat for each label. Use the grams of saturated fat found on the food labels.Hint: Saturated fat is a type of fat. There are 9 calories for each gram (9:1) of fat.Example: 5 grams fat = 5 x 9 = 45 calories from fat336486558102500Label 1.x336486580962500Label 2.xWhich product has more calories from fat?Lastly, you will calculate the calories from sugar for each label. Use the grams of sugar found on the food labels.Hint: Sugar is a type of carbohydrate. There are 4 caloriesfor each gram (4:1) of carbohydrate.Example: 6 grams sugar = 6 x 4 = 24 calories from carbohydrates336486558039000Label 1.x336486576327000Label 2.xWhich product has more calories from sugar?Activity 1:Go Long!The Digestive SystemNorth Carolina Science OlympiadYou Will Need:Measuring TapeToilet Paper RollHow long is the gastrointestinal (GI) tract of a living adult human man? You will test your intestine knowledge with the help of a toilet paper roll!Follow these steps:Take a roll of toilet paper and place it on the floor.Roll out the toilet paper until you think it has reached the length of a living adult human male (GI) tract.Break off the portion of toilet paper you just unrolled.Take the measuring tape and measure the length of the toilet paper in feet and inches.Write this measurement in the chart below.Intestine lengthfeetinches423481532766000Who has a longer gastrointestinal (GI) trackYou or an adult and why?1292225478218500Activity 2:Food Crushing FunNorth Carolina Science OlympiadCorrectly label the digestive system using the following organs:- liver- large intestine- esophagus- small intestine284797558985150068643530651450010293353065145003958590891730515Packet # _____0015Packet # _____- stomach- mouthQuestions:1. The mouth mechanically breaks down the food we eat by usingour teeth and the saliva it excretes primarily breaks down ____________ .fatcarbohydratesproteinnone of the above2. The stomach produces acid to chemically digest food and primarily digests____________.fatcarbohydratesproteinnone of the above3. The small intestines absorb most of the nutrients in the food we eat and primarily digests____________.fatcarbohydratesproteind. none of the aboveActivity 3:What Am I?The Digestive SystemYou will read the descriptions of the mystery organs. Use the following organs to answer the questions:- esophagus- small intestine- pancreas- stomach- mouth- liver- large intestine1. What Am I? ____________________________________I produce Hydrochloric Acid to break down foodI am located under your lowest rib on the left side of your bodyI am shaped like an eggplantI expand from the size of your fist to the size of a cantaloupe2. What am I?______________________________________I connect the mouth to the stomachAfter you swallow your food, I allow the food to pass through meI am tube shaped3. What am I? ______________________________________I am lined with finger like projections called villiAs food passes by, my villi reach into the food to absorb the nutrientsI am divided into 3 parts, the duodenum, the jejunum and the ileumI am wide enough that you can fit 2 of your fingers inside5. What am I? _____________________________________I produce saliva to help breakdown foodI am the first organ in the digestive systemI contain about 26-28 teeth that help mechanically break down food6. What am I?________________________________________I prepare undigested material for removal from your bodyI am about 1/4 the size of your small intestine, but much widerI am also known as the colonI house many types of bacteria the help me digest difficult foodI absorb water7. What am I?________________________________________I am the largest organ in the digestive tractI produce bile to help break down the fat in food ................
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