Rain gauge
Objective – To see how much rain water fell.Material – Scale bar, measuring tape, Bisleri bottle, Narsale.etc.Action – 1) learn about why to measure the fertility.
2) cut a piece of honey form a bisleri bottle add a few drops of honey and stick a measuring tape on it.
3) And keeping it in a place where rainwater should come form all sides means keeping it in an open space.
4) Keep it a little higher so that the water from below does not get into it.4=3.14Aera of the manhole = ×π²=3.14×4.85×4.85=7.5.86Half the radius= Water received form rain × 10 ÷ fruit of the mangrove=200×10 ÷ 3.36=2.×10=27.07 ml. Rain All this information was waited for and identified, everything was known.
