investigating seed germination

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6 Terms

1
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how to investigate conditions needed for germination

four boiling tubes with some cotton wool at the bottom of each one

10 seeds on top of the cotton wool

set up each boiling tube

leave tubes for few days

2
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how will the four boiling tubes look like

1 = water, oxygen, room temperature (control)

2 = no water, oxygen, room temperature

3 = water, oxygen, low temperature

4 = water, no oxygen, room temperature

3
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how to remove water from tube 2

spray water on all cotton wools except this one

4
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how to lower the temperature from tube 3

put it in a fridge

5
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how to remove oxygen from tube 4

pour boiled water in the tube

and oil on top

6
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what are the results

germination should only occur in tube 1

because all the conditions are needed for germination to occur