Quick Answer: The Ob-Scertainer Kit teaches parts of the scientific method, from experimental design to testing a hypothesis and drawing conclusions. It is reusable and includes 24 steel balls, 50 student worksheets and various moulded parts.
Last updated: October 2026
Key Features
Covers experimental design, testing a hypothesis and drawing conclusions
Uses a model to explain indirect observation
24 steel balls
50 student worksheets
Various moulded parts; the kit is reusable
Technical Specifications
Specification
Value
Steel balls
24
Student worksheets
50
Other parts
Various moulded parts
Use
Reusable
About This Product
Students work out what they cannot see by gathering indirect evidence from a model, much as scientists infer structures they cannot observe directly. The activity gives practice in forming a hypothesis, testing it and explaining the result.
Frequently Asked Questions
What does the Ob-Scertainer Kit include?
24 steel balls, 50 student worksheets and various moulded parts. The kit is reusable.
