# Year 9 Science - Energy in Food

ScienceFood for Life

# Year 9 Science - Energy in Food

Created 2 years ago

Duration 0:10:48
46
Slide Content
1. ### 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. ### 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. ### 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. ### Slide 4 - Nutrient in Foods

• Carbohydrate
• Protein
• Fat
• Minerals and Vitamins
• Water
• Fibre
5. ### 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

8. ### 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

10. ### Slide 10 - Daily Intake

• 105% of DI energy!!!