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Seed germination experiment. Aim: To investigate the following factors affecting seed germination (warmth, water, light, air)

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  • Essay length: 564 words
  • Submitted: 05/04/2011
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International Baccalaureate Biology

The first 200 words of this essay...

Victor Vildé 10 may 2010

Seed germination

I) Aim:

To investigate the following factors affecting seed germination (warmth, water, light, air)

II) Hypothesis:

The seeds with all the factors will be the best developed. I think the grains without water, air and warmth will not grow because seeds need water and warmth to be activated and they need oxygen to develop. The seeds without light will grow but it will not have a green colour because the plants need light to make photosynthesis.

III) Variable:

Constant: cotton wall, surface area of the boiling tube, water, light, air.

Independent variable: warmth

Dependent variable: seeds germination

IV) Laboratory apparatus:

* 5 Boiling tubes to put the seeds in a special environment with different factors (no warmth (1), no water (2), no light (3), no air(4), Control (5))

* Boiling tube rack: to hold the boiling tube while we are preparing the experiment

V) Method:

We put five boiling tube in a boiling tube rack. In the five boiling tube we put a cotton wall at the bottom with 10 seeds on it.

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