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Observation

The nuts contained energy. The cashew nut stored a higher amount of energy than the peanut.

Nut

Initial weight (g)

Weight after burning (g)

Difference in  weight (g)

Temperature increase (°C)

Calories used in burning

Calories per gram

Peanut

0.78

0.29

0.49

2.5

250

510

Cashew nut

1.30

0.78

0.52

3.0

300

576

Calories used = Weight of water (g) x  temperature rise of the water (°C)

Calories per gram = Calories used / Lost Weight (g)

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Complexity level:
7
Project cost ($):
10
Time required:
It will take an hour to set up the science experiment, and an hour to conduct it
Material availability:
The materials required can be purchased at a supermarket.
Safety concerns:

Ensure that you handle the lighter with care. Adult assistance is required. Conduct the experiment in a safe, properly equipped laboratory.