The point of the experiment has been foiled by the choice to hand water one group and use sprinklers on the other. Whether talking to the plant or not did anything can't be proven because of this. If the student were to try to publish this experiment and the outcomes. Critics would be able to use the unequal treatment in water supply as a reason to discredit his/her experiment and dismiss the claims. When performing an experiment like this it is very important to treat each side as equal as possible.
No, it’s not accurate. The law of conservation of energy states that energy can’t be created or destroyed. Plants transform light energy from the Sun into chemical energy through the process of photosynthesis.
The type of rocks which are created by erosion are sedimentary rocks.