Site Navigation

Your Account

Choose Language

1.2

Minor Versionm

by Suhail Ahanger

Introduction

A simple, effective and enjoyable way to measure the area of irregular shapes, such as leaves, by tracing out the shape and using graph paper.

Tools

Parts

    • Wash hands after handling the leaves as it may contain dirt

  1. Lay the leaf on the graph sheet. Trace its outline using Pen/Pencil. No need to trace the area of Stem (Petiole).
    • Lay the leaf on the graph sheet.

    • Trace its outline using Pen/Pencil.

    • No need to trace the area of Stem (Petiole).

  2. Use two different colors to mark full squares and partial ones Use Pen/Pencil and number the full squares inside the leaf trace.
    • Use two different colors to mark full squares and partial ones

    • Use Pen/Pencil and number the full squares inside the leaf trace.

    • Use an alternative color to number the partial squares inside the leaf trace.

  3. Multiply the number of full squares by 1 cm2 and partial squares by 0.5 cm2 and add them together.
    • Multiply the number of full squares by 1 cm2 and partial squares by 0.5 cm2 and add them together.

    • Repeat the above steps for any number of leaves.

    • Multiplying partial squares by 0.5 cm2 is not accurate. But, since the errors average out, you get a good estimate of the leaf's area.

    • Try the same on 2 , 4 cm2 graph sheets and compare the results to arrive at the most accurate value.

    • Leaf is moved when profiling.

    • Miscounted the number of "Full" and "Partial" squares.

    • Margin of error when approximating the partial squares as 'Half'.

Finish Line

Kailash NR

Member since: 05/02/2017

4,021 Reputation

88 Guides authored

0 Comments