Cress Investigation

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Cress Investigation
By Kirsty Hall
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Equipment
This is the equipment that I will need 90 cress
seeds 3 egg cups Cotton wool Access to water 1
tablespoon 1 30cm ruler
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Our Aim
My aim is to find out what temperature my cress
seeds need to grow at. I did this by getting
about 90 cress seeds and placing 30 of them in an
egg cup and placed it in a warm place which was
under our storage heater. I got another 30,
placed them in an egg cup and placed them in a
average place which was my kitchen. I repeated
this again and put them in a cold place which I
thought would be best outside. I will place the
seeds on some cotton and then in the egg cup. I
will measure and water them everyday. I will
measure them with a 30cm ruler and water them
with 1 tablespoon.
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How will I make it a fair test?
To make it a fair test I will have to do the
following Use the same amount of cress
seeds. The same size egg cup. Water the seeds the
same amount. Keep the egg cups in the same
place. Leave them for the same amount of days.
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Results