1. Comparing calories content in different energy bars
Group leader:Muskan
Group members:Afsa Jaspreet Khushboo Gandeep

2. Investigation value Small size Less in weight Contains more calories
Take less space and can carry more at a time

3. Related scientific knowledge
Calories is a unit of energy
Calories refer to the energy people get from the food and drink they consume,and the energy they use in physical activity
Food high in energy but low in nutritional value provide empty calories
The more calories a food has the more energy it can provide to your body

4. How to compare
To compare the calories we have done an experiment and we will state the procedure in the next slide
We will also state the apparatus and materials in the coming slide
And we will show our records the experiment

5. Procedures Prepare 3 energy bars Cut all the energy bars in 1 gram
Burn 1 sample of energy bars and boil the water
Check the temperature rise
Repeat the same steps for the other energy bars three times

6. Apparatus and materials used
Bunsen burner
Thermometer
Test tube
Clamp stand
Water
Spatula
Weighting machine

7. Our pictures of the experiment

8. Method to collect evidence
The more temperature of the water gets high the more energy it contains
(Meaning): We have to check the water temperature risen the temperature risen that much of the energy it contains

9. Record (Table) 5° 4.2° 1° Energy bar Initial temperature
Final temperature
Change in temperature
Rank of calories content
Nestle
(Milo) 3° 5° 2° 1
(Fitness)
4.2°
1.2° 2
Coco crunch 1° 3

10. Possible Errors & improvement for the errors
Not every single piece of the energy bar was completely burned
There could be a lots of heat loss due to the surrounding and can effect the experiment
We have to keep an proper eye on the bar and make it completely burn
We can maintain the room temperature by keep it warm or a normal temperature

11. Our conclusion
Our final conclusion is that the nestle milo energy bar contains the most calories and the coco crunch energy bar contains the least calories and the nestle fitness energy bar has almost the same amount of calories as the coco crunch energy bar.

12. Thanks for listening to our presentation
Special thanks to our science teacher Ms.Chow for helping us in this presentation whenever we needed her