Indicators
- Red Cabbage
- Carrots
- Red Chard
- Blueberries
- Grapes
- Cranberries
(Red beets, all berries, roses, hydrangeas, hollyhocks, and other pigmented flowers are also good natural indicators.)
Things to Test
- White Vinegar
- Lemon juice
- Orange juice
- Grapefruit juice
- Egg whites
- Baking Soda (with water)
- Bleach
- Windex
- Sprite or other clear carbonated drink
(Antacid tablets, aspirin, or other household cleaners, can also be tested.)
Other
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