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1.2

Minor Versionm

by Suhail Ahanger

Introduction

Seeds germinate differently in different conditions. Here we compare their germination when fully submerged in water, partially submerged and totally exposed

Parts

    • Stagnant water kept for many days may become stale and a breeding ground for mosquitoes and diseases; replace with fresh water every few days

    • Do not ingest either the seeds or the water

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  1. Take three chana seeds (or beans) and tie them on a ruler using rubber bands (or thread): one at the top, one at the bottom and one in the middle of the ruler. Place the ruler in the glass.
    • Take three chana seeds (or beans) and tie them on a ruler using rubber bands (or thread): one at the top, one at the bottom and one in the middle of the ruler. Place the ruler in the glass.

    • Fill the glass with water in such a way that the middle seed is half exposed to air and half immersed in water.

    • Leave this setup for 1-2 days and later on start observing day by day.

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    • Observe the seeds every day and record what you see.

    • You may observe that the seed that is completely immersed in water shows just a little germination.

    • The seed on top, which is completely exposed to air, perhaps does not germinate at all.

    • Whereas the seed at the centre, which is partially submerged in water, should show the maximum germination.

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    • Make sure you check your water levels every day such that the middle seed remains partially submerged throughout your experiment (2-7 days or even longer if you want).

    • The seed on top should not come into contact with water at all.

    • You may need to empty out the glass and refill the glass with fresh water in case it starts smelling and/or you are conducting the experiment for many days.

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Finish Line

Kailash NR

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