How to test energy in food?

Answer 1

1. Use a measuring cylinder to measure 100 cm3 of cold water and put it in a metal can (record the temp of the water)

2. Then place 1 gram of sugar onto a tin lid and place this lid under the bunsen flame

3. Once the sugar starts to burn, move the tin lid under the metal can containing the water, so that the flames from the sugar touch the bottom of the tin can, and so warm the water

NOTE: If the sugar stops burning, move the tin lid back to the bunsen burner to set it alight again. Then move the tin lid back to the water

4. If the sugar has stopped burning and can no longer be ignited, record the new temperature of the water.

To work out the rise in temperature from the water, take away the 1st temperature from the 2nd (2nd temp - 1st temp = rise in temp of the water).

Answer 2

peanuts, measure the weight, volume and temperature of a peanut , then u can find the energy of it, energy is always measured in joules

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Answer 3

One way is to burn it. The more heat it gives off, the more energy it contained. Try it with a potato chip!