Friday, 10 November 2017

8A check energy values in crisps. 

A bit more work on energy; calculating the calorific value of crisps.

First find the mass of your crisp

Then add a certain amount of water to a boiling tube

Take the temperature of the water

Set fire to the crisp and heat the water with it

You have to burn all of the crisp keeping it under the boiling tube at all times

Check the temperature after heating

And then do your calculations

There were four different crisps to do

So careful measurements were needed for a valid comparison

And lots of calculations but in the end the cheezy Wotsits won!