UNIT 1- burning crisps

Question 1

how can you find out how much energy is in a food?

Answer 1

This is done by heating up water in a test tube using burning food and then measuring the temp of the water

Question 2

independent variable

Answer 2

the variable you decide to change (type of crisp)

Question 3

dependent variable

Answer 3

the variable that changes because you changed the independent variable (temperature change of water)

Question 4

control variable

Answer 4

A variable that needs to be kept the same. Changing it will affect the results.
(mass of crisp, complete combustion of crisp, distance of crisp from water)