1.2.10

Dispersal Method

Test yourself

Dispersal Methods and Their Effectiveness

We can investigate the different dispersal methods and their effectiveness.

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Investigating dispersal methods

  • You could measure the average distance that seeds travel upon dispersal. In this example, we will look at those dispersed by the wind.
    • Find a seed that is dispersed by the wind.
    • Release the seeds and allow them to settle.
    • Record the different distances they all travelled and calculate the mean.
    • Repeat this with a different seed that is also dispersed by the wind.
    • Compare your results.
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Factor affecting wind dispersal

  • How tall the plant is, i.e. how high the seed is released from.
  • The weather on the day - whether it be dry or damp, windy or calm, hot or cold.
  • The structure of the seed - does it have ‘wings’ or structures that make it better at travel on a breeze of air?
  • How heavy the seed is.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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