Classify the variables
Type of jelly
volume of water
Temperature of water
how much stirring
Size of the jelly piece
time taken for the jelly to dissolve
How much jelly is used
Independent variable
Dependent variable
Control variable
What is the aim of your investigation?
To see how affects
What is your hypothesis?
As the size of the jelly pieces the time taken for the jelly to dissolve .
Explain your hypothesis.
For piece of jelly to dissolve the water have to collide with the particles.
Only the jelly particles on the surface of the jelly can with the particles.
The jelly particles that are not on the outside cannot dissolve.
If the number of jelly particles that are on the outside increases then the time taken for the jelly to dissolve will decrease.
Smaller pieces of jelly have a larger surface area to volume ratio (more of the particles are on the outside).
Results table
What will the heading for the first column of your results table be?
.
What will be the next column on your results table?
Graph
What will you plot on the x-axis?
.
What will you plot on the y-axis?