Year 9 Science - Energy in Food

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Year 9 Science - Energy in Food

Created 2 years ago

Duration 0:10:48
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  1. Into

    Slide 1 - Into

    • Have you every wonder why we need to eat foods? And why some foods are healthier than others. In today’s episode, we are going to talk about energy in foods and how to determine the nutrition in different types of food.
    • Welcome to this episode of “daily science” where science is all about ‘Invention’, ‘Inspiration and ‘Imagination’.
  2. Energy

    Slide 2 - Energy

    • Every living thing needs energy, including the human body. It needs energy to work properly and stay healthy, as well as to do activities.
  3. How much energy?

    Slide 3 - How much energy?

    • Resting Metabolic Rate (RMR) = The amount of energy needed to keep the body functioning in a rest, awake and fasting state in a comfortably warm environment
    • Basic Calculation:
    • Body weight (kg) X How active you are (kJ) = RMR
    • 90 kg X 120 kJ = 10,800 kJ
  4. Nutrient in Foods

    Slide 4 - Nutrient in Foods

    • Carbohydrate
    • Protein
    • Fat
    • Minerals and Vitamins
    • Water
    • Fibre
  5. How much energy are in foods?

    Slide 5 - How much energy are in foods?

    • A calorie is the amount of heat it takes to raise the temperature of 1 gram of water 1 degree Celsius
    • 1 calorie = 4.184 joules
  6. Foods in supermarket

    Slide 6 - Foods in supermarket

  7. Up & Go

    Slide 7 - Up & Go

  8. Australia New Zealand Food Standards Code (FSC)

    Slide 8 - Australia New Zealand Food Standards Code (FSC)

    • Nutrient
    • Quantity Per Day
    • Energy
    • 8,700 kJ
    • Protein
    • 50 g
    • Fat
    • 70 g
    • Carbohydrates
    • 310 g
    • Sugars
    • 90 g
    • Sodium (salt)
    • 2.3 g
    • 8700 kJ
    • - 815 kJ
    • = 7855 kJ left
    • Consume more than 7855 kJ
    • Consume less than 7855 kJ
  9. Daily Intake

    Slide 9 - Daily Intake

  10. Daily Intake

    Slide 10 - Daily Intake

    • 105% of DI energy!!!
  11. Foodswitch

    Slide 11 - Foodswitch

  12. End

    Slide 13 - End