16/02/17


Welcome,


This blog will demonstrate my experiment on -  "Which liquid preserves an apple the longest".

Independent Variable

(what will I change)

- The independent variable will be the liquids preserving the sliced apple.

In this case the different substances are

1. Water with sugar

2. Lemon Juice

3. Apple cider vinegar

Dependent Variable

(what I am measuring)

Will measure the length of time in how long until the apple rots - recording the data of the brownness in the apple slices compared between the three preservative.

Controlled Variable

(what I am keeping the same)

In this experiment, the controlled variable would be:

- The same amount of liquid in the jar (100mL)

- A slice from the same apple

- The mass of the apple (1/3 in a jar)

- The conditions around the jars (weather or heat/cold)

- The length of time recording results in each jar