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  • Basic Seed Facts

Basic seed facts

  • Estimated Time 30 minutes
  • Location Indoors
  • Time of Year All Year Round
  • Curriculum L1/2 , L3 & L4
  • Subject Science

Learn and understand basic facts about seeds, germination and growth.

Learning Intentions

Students will be able to:

  • describe what seeds are and how they are useful
  • explain what is needed for germination and further growth
  • describe some uses of plants.
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What are seeds?

  • They are ‘baby’ (juvenile) plants.
  • They are dormant (like being asleep).
  • They have a protective coat which allows them to survive harsh conditions.

What are seeds for?

  • They grow into new plants and so keep the species going.
  • Their design often helps them to be spread away from the parent plant, e.g. by wind (fluffy thistle seeds), by water (buoyant coconut and flax seeds) and by animals (edible acorns, walnuts and berries). This process is called dispersal.

What is needed for germination?

  • Seeds need all three of the following to germinate: oxygen, water and warmth.
  • Some seeds have special dormancy which must be ‘broken’ before germination can begin, e.g. acorns need to be chilled for several weeks and gorse seeds need heat (for example from a fire).

What is needed by plants for continued growth?

  • Plants need carbon dioxide, water and sunlight for growth (all are used in photosynthesis). Oxygen is a waste product of photosynthesis.
  • They need nutrients like nitrogen, phosphorus and potassium to grow.
  • They need soil or some other medium to anchor themselves, allowing them to stand upright.

Why do we need plants?

  • For food and fibers.
  • To feed animals.
  • For shelter.
  • To produce oxygen.
  • To bind soil and so reducing erosion.
  • To soak up excess water during high rainfall and so reducing flooding.
  • To creative attractive gardens and landscapes.

Related resources

One seed becomes many

Bean germination masters

What comes next?

Stages of germination

Bean seed dissection

Bean germination poster

Picture credits: Seed mix thumbnail (Pixabay). Sunflower seed heads (Pixabay).

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