Yoronea was about to feel happy making herself a water filter when she remembered something. ‘I forgot the gravel, and that wasn’t even the last step. What have I done?’ exclaiming to herself. In a rush she went outside where her mother’s plant was placed and immediately gathered some small rocks, then, she slightly ran towards the dining table where she was doing her little experiment. But the moment she had already seated, she stood up again, remembering that she needed to wash the rocks first before placing them in the plastic bottle. After ensuring that everything was fine, she went back to her position at the dining table and placed the freshly washed small rocks on top of the fine sand. She made sure that it was also two inches laid, preventing the water being poured in from di

