decay

Question 1

different temperatures will aaffect the rate of decay

Answer 1

independent variable: temperature
dependent variable: mass loss over time
control variables: same type of bread; same starting mass; same volume of oxygen
1) hot (radiator)
2) room temperature3
) cold (fridge)

Question 2

ideal decay conditions

Answer 2

warm(chemical reactions happen faster in warmer conditions)
humid( allows organisms to dissolve their food)
oxygen(for respiration)