Inside a Seed

Curriculum Area

Subject: Science
Key Stage: KS1
National Curriculum Link:

• Plants: Identify and describe the basic structure of a variety of common flowering plants, including trees.
• Working Scientifically: Observing closely, using simple equipment, and identifying and classifying.

Lesson Duration

Total time: 60 minutes
Class size: 30 students

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Learning Objectives

By the end of the lesson, pupils will be able to:

1. Identify the main parts inside a seed.
2. Explain the role of each part in the seed's growth.
3. Observe and dissect a seed, making simple scientific observations.

Prior Knowledge

• Pupils may already know that plants grow from seeds.
• Some students might have seen seeds sprout but may not understand what happens inside.

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Lesson Structure

Starter Activity (10 minutes) – The Magical Seed

1. Engage (5 minutes)

   • Begin with a mystery bag containing different seeds (e.g. sunflower, bean, pumpkin).
   • Pass the bag around and let children guess what’s inside.
   • Reveal the seeds and ask: “What do you think is inside a seed?”

2. Visualisation (5 minutes)

   • Show an enlarged picture of a cut-open seed (e.g. broad bean) on the board.
   • Ask pupils to predict what they think the inside parts do.

Main Activity (35 minutes) – Seed Dissection & Investigation

Part 1: Hands-On Science (15 minutes)

1. Pair up the students – each pair receives a soaked bean seed.
2. Step 1: Observation – Use magnifying glasses to examine the seed’s outside.
3. Step 2: Carefully Open the Seed – Show pupils how to split it gently in half.
4. Step 3: Identify Key Parts
   • Seed coat (testa) – Protects the seed.
   • Embryo (baby plant) – The tiny plant inside.
   • Cotyledon – Stores food for the growing plant.

Part 2: Creative Learning (15 minutes)

• Pupils label a simple diagram of a seed in their books.
• Act out the growth process with movement:
  1. Curl up in a ball (seed).
  2. Slowly stretch out a little (root emerges).
  3. Lift arms up (shoot growing).

Plenary (15 minutes) – ‘Seed Detective Quiz’

1. Quick-fire Questions:
   • “What is the coat of the seed called?”
   • “Which part of the seed turns into a plant?”
   • “Why do seeds need food inside them?”
2. Reflection: Pupils share their favourite part of the lesson.
3. Exit Ticket: Each child writes or draws one new fact they learned about seeds.

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Resources

✔ Soaked bean seeds (1 per pair)
✔ Magnifying glasses
✔ Paper towels
✔ Seed diagram worksheets
✔ Labels & coloured pencils

Assessment Opportunities

✅ Observational Assessment: Teacher circulates during the dissection to check understanding.
✅ Questioning: Responses in class discussion and quiz answers show comprehension.
✅ Work Samples: Pupils’ labelled diagrams & exit tickets provide written evidence of learning.

Differentiation

🔹 Support:

• Pair struggling pupils with a confident peer.
• Provide pre-labelled diagrams for pupils to match parts to names.

🔹 Challenge:

• Ask higher-ability students why they think seeds contain food inside.
• Introduce the concept that not all seeds are the same (e.g. compare a bean with a sunflower seed).

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WOW Factor & Cross-Curricular Links

💡 WOW Moment: Reveal a real-time sprouting seed (grown from last week) as a surprise at the end!

🎭 Drama & Literacy: Pupils act out the journey of a seed as it grows.

🎨 Art & Creativity: Encourage students to create their own “seed superhero,” designing what it might look like inside.

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Teacher Reflection

📋 Checklist for next time:
✅ Did pupils grasp all seed parts confidently?
✅ What worked well & what could be improved?
✅ Were any children particularly engaged or needing extra support?

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This lesson uses hands-on activities, questioning, and creativity to build an engaging and memorable understanding of what is inside a seed. 🌱