1. Education
Phase 2
Energy

2. Sources of energy

3. Energy Food is the body’s source of energy.
Food and drink provide energy.

4. Energy We need energy to grow, be active and maintain health.
Different types of food provide different amounts of energy.
Energy is measured in kilojoules – kJ.

5. 100g of these foods provide
different amounts of energy…
152 kJ
413 kJ
712 kJ
3059 kJ

6. Which food provides the least energy?
125 kJ
1194 kJ
562 kJ
595 kJ
All foods per 100g.

7. Which food provides the most energy?
215 kJ
3059 kJ
1422 kJ
601 kJ
All foods per 100g.

8. Different activities use different amounts of energy.
Uses of energy
Different activities use different amounts of energy.
Which activity uses the most energy?
cooking
swimming
walking
football
85kJ/15 mins
357kJ/15mins
114kJ/15 mins
196 kJ/15 mins

9. Portions
Different amounts of food provide different amounts of energy.
The amount of food is known as a portion.
We eat different amounts of different types of food.
Per 100g = 922 kJ
Per slice (36g) = 318 kJ
Per 100g = 152 kJ
Per small orange (120g) = 182 kJ

10. Portions Per 100g = 451 kJ Per slice of ham(23g) = 104 kJ
Per matchbox size chunk of cheese(30g) = 518kJ