Part 1: Design
Information of on how to create a good lab design and write a good design
Below is an example of a lab that I created that is up to IB standards. The only part I didn't include is the scientific background section (which I expect to see in your IA)
Part 2: Data
Click on the link below to see the checklist for what needs to be included in the data section of an IA. There should also be a section that describes all of the uncertainties (not in the checklist) . Also, an example of the control variable table is not in the example lab provided in this document.