In this question, we need to determine which variable is being tested in the planned experiment. Let's analyze the given information step-by-step:
1. Light exposure:
- Experimental Group: lots of sun
- Control Group: lots of sun
Since light exposure is the same for both groups, it is not the variable being tested.
2. Amount of water:
- Experimental Group: weekly
- Control Group: weekly
The amount of water is also the same for both groups, so it is not the variable being tested.
3. Type of soil:
- Experimental Group: nutrient rich
- Control Group: nutrient rich
The type of soil is identical for both groups, so it is not the variable being tested.
4. Size of pot:
- Experimental Group: large
- Control Group: small
The size of the pot is different between the experimental group (large pot) and the control group (small pot). This difference indicates that the size of the pot is the variable being tested.
Therefore, the variable being tested in this experiment is:
C. Size of pot
