Maybe Part 1 Need a computer with color monitor for Part 1. Need darkened room and 3 overhead projectors for Part 2. No water or mess unless paint is used in Part 3. Exploring Surface Phenomena Journal Staff, J. Chem. Can be messy.
All parts work well.
An Activity with Electricity Journal Staff, J. Chem. Parts 1 and 2 work well unless humidity is very high. Part 3 requires careful observation. Maybe No Need access to water. Can be tricky to get this to work properly.