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- Used to test chemical solutions for levels of acidity or alkalinity.
- Acid/base chart with a scale of 1 - 14 enables accurate measurements.
|age recommendation||Child years|
|grade||pre-k; kindergarten; 1st grade; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; 9th grade; 10th grade; 11th grade; 12th grade|
|size||7 1/2" x 3 1/2"|
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