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Year 3 - Science

The parts of a flower

What plants do and what they need

Unit Summary

This unit explores the functions of different parts of flowering plants, including roots, stems, leaves, and flowers. It investigates plant requirements for growth and the role of flowers in pollination, seed formation, and dispersal. Emphasis is on practical enquiries, and data presentation.

Lesson Summary

You will learn to describe the functions of flowers on flowering plants and identify some parts of a flower.

Key Notes

  • Flowers play an important part in the life cycle of a flowering plant.
  • The anther is a part of the stamen that produces and holds the dusty pollen. Anthers are male parts of the flower.
  • The stigma is a female part of the flower and is sticky.
  • The ovary is where seeds are formed.
  • Petals are brightly coloured to attract animals, such as insects and birds, to carry pollen to another flower.

Vocabulary To Learn

  • stamen: The male parts of a flower are called the stamen.
  • anther: The anther is a part of the stamen that produces and holds pollen.
  • stigma: The stigma is a sticky part at the top of the female parts of a flower.
  • ovary: Seeds are formed inside the ovary of a flower.
  • petal: A petal is a part of a flower which is often colourful and attracts insects to pollinate the flower.

Common Mistakes To Avoid

  • Pupils may think the function of flowers is to make plants look nice or that they are there for the benefit of humans.

3 Quick Questions (With Answers)

1. Explain the scientific idea in this lesson using two key points.

Flowers play an important part in the life cycle of a flowering plant. The anther is a part of the stamen that produces and holds the dusty pollen. Anthers are male parts of the flower.

2. Define this scientific word and use it in context. 'stamen'

The male parts of a flower are called the stamen. Include the word in a full scientific explanation, not as a single label.

3. Correct this common scientific misunderstanding.

Mistake: Pupils may think the function of flowers is to make plants look nice or that they are there for the benefit of humans. Correction: Explain that flowers are the reproductive parts of a plant that allow it to make more seeds.

More Lessons In This Unit

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