Design an experiment to demonstrate hydrotropism.

(N/A) $1$. Take two small beakers and label them as $A$ and $B$.
$2$. Fill beaker $A$ with water and leave beaker $B$ empty.
$3$. Make a cylindrical-shaped roll from a filter paper and place it as a bridge between beaker $A$ and beaker $B$.
$4$. Place a few germinating seeds in the middle of the filter paper bridge.
$5$. Cover the entire set-up with a transparent plastic container to maintain humidity.
Observation:
After a few days,it is observed that the roots of the germinating seeds grow towards beaker $A$ (the source of water).
Conclusion:
This growth of plant roots towards water is known as hydrotropism. It demonstrates that roots are positively hydrotropic.