🕯️🔬 Grade 4 Science – Learning through Observation As part of the Grade 4 Science topic “The need for air by non-living things”, students observed a simple yet thought-provoking experiment using candles placed in glass containers. When one candle was covered, the flame gradually went out, while the uncovered candle continued to burn. This demonstrated that a continuous supply of air is necessary for something to keep burning. 🔥 Air (oxygen) is essential for burning. Once the available air is