Related Clues:
- Acid-alkali testing substance
- Red-blue mixture
- Having settled problem, turned over paper for chemistry test
- Animated by flipping problem dye encountered in testing
- An acid test, perhaps, for this paper?
- Red and blue mixed
- Place outlined in perfect shade
- Like a certain emperor's description of an ornate passage?
- Acid-testing paper
- Paper that turns red in acids
- Acid test?
- National flag betrays embarrassment
- Test paper in chemistry?
- Is embarrassed when one embellishes the story
- Stimulant going wrong has knocked insect out -- substance used in lab