turns litmus paper blue: crossword clues

Matching Answer
Confidence
ALKALI
60%
ACID
60%
DYES
60%
REAGENTS
60%
ACIDS
60%
DYE
60%
TEST
60%
ESSAY
60%
EDIT
60%
TINTS
60%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)