
Web Strength Unraveled
This Spark challenges curious minds to discover the incredible strength of spider webs by testing everyday materials. Children will design their own experiments, explore the concept of tensile strength, and uncover why a tiny spider's silk is an engineering marvel.
The lesson goal is learners will predict and test the strength of various materials, understanding the concept of tensile strength. They will then compare the resilience of common objects to the remarkable properties of natural materials like spider silk, appreciating its engineering marvel.
What You Need
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Learning Guide
Step-by-step guidance. No preparation required.
- 1
Morning Marvels: What's Strong on Your Table?5 Min
- Look around your space and find something thin that feels strong.
- Move on when Child identifies at least one thin, strong item and shares a thought about what makes it strong.
- 2
Designing a Super String Test8 Min
- Gather your chosen 'super strings' and small weights.
- Discuss and plan your strength test: How will you add weight? How will you know which is strongest?
- Predict which material will be the strongest before you test.
- Move on when Child has selected 2-3 materials to test and describes a method for testing their strength.
Photo by Sternsteiger Stahlwaren on Pexels - 3
What Makes Something Super Strong?6 Min
- Discuss what you noticed about your materials and how they broke.
- Move on when Student can explain 'tensile strength' in their own words and give an example.
Photo by cottonbro studio on Pexels - 4
Testing Super Strings9 Min
- Cut your chosen materials to the same length (e.g., 20 cm (8 in)).
- Secure one end of a string (e.g., tape to a table edge, or hold it up).
- Attach your chosen weights (e.g., paperclips) to the other end, one by one.
- Observe how many weights each string holds before it breaks.
- Move on when Student has completed the physical testing of at least two materials.
Photo by cottonbro studio on Pexels - 5
Unveiling the Web's Secret2 Min
- Share the amazing fact about spider silk strength and discuss what surprised you both.
- Move on when Student expresses surprise or understanding about spider silk's strength and connects it to their own material testing.
Photo by Keith Lowery on Pexels
How strong is a spider web?
Web Strength Unraveled

This Spark challenges curious minds to discover the incredible strength of spider webs by testing everyday materials. Children will design their own experiments, explore the concept of tensile strength, and uncover why a tiny spider's silk is an engineering marvel.
Our Goal is learners will predict and test the strength of various materials, understanding the concept of tensile strength. They will then compare the resilience of common objects to the remarkable properties of natural materials like spider silk, appreciating its engineering marvel.
What You Need
Missing something? In the app, Mai suggests swap ideas.
Learning Guide
Step-by-step guidance. No preparation required.
- 1
Morning Marvels: What's Strong on Your Table?5 Min
- Look around your space and find something thin that feels strong.
- Move on when Child identifies at least one thin, strong item and shares a thought about what makes it strong.
- 2
Designing a Super String Test8 Min
- Gather your chosen 'super strings' and small weights.
- Discuss and plan your strength test: How will you add weight? How will you know which is strongest?
- Predict which material will be the strongest before you test.
- Move on when Child has selected 2-3 materials to test and describes a method for testing their strength.
Photo by Sternsteiger Stahlwaren on Pexels - 3
What Makes Something Super Strong?6 Min
- Discuss what you noticed about your materials and how they broke.
- Move on when Student can explain 'tensile strength' in their own words and give an example.
Photo by cottonbro studio on Pexels - 4
Testing Super Strings9 Min
- Cut your chosen materials to the same length (e.g., 20 cm (8 in)).
- Secure one end of a string (e.g., tape to a table edge, or hold it up).
- Attach your chosen weights (e.g., paperclips) to the other end, one by one.
- Observe how many weights each string holds before it breaks.
- Move on when Student has completed the physical testing of at least two materials.
Photo by cottonbro studio on Pexels - 5
Unveiling the Web's Secret2 Min
- Share the amazing fact about spider silk strength and discuss what surprised you both.
- Move on when Student expresses surprise or understanding about spider silk's strength and connects it to their own material testing.
Photo by Keith Lowery on Pexels
In The Mai App
Bring This Spark To Life
Same Spark, with Mai by your side
Mai Leads It
Mai leads the Spark out loud, so they can learn on their own.
Step-By-Step
Get every step with Mai's tips, one at a time, at your pace.
Quick Swaps
Missing something? Mai suggests swap ideas, so you can start now.
Beyond The Spark
After, a fun fact, a challenge and a Table Talk question.
