pH Comparison For Kids

Number comparison series

Here are 14 fun and educational “Freezing Point Comparison” examples to help kids understand how different substances freeze at different temperatures, and how comparing these temperatures can tell us whether something will freeze or stay liquid.

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Question1: Lemon juice vs. Vinegar
Lemon juice: pH 2
Vinegar: pH 3
Question2: Milk vs. Water
Milk: pH 6.5
Pure water: pH 7
Question3: Soapy water vs. Baking soda solution
Soapy water: pH 9
Baking soda solution: pH 8.3
Question4: Stomach acid vs. Orange juice
Stomach acid: pH 1.5
Orange juice: pH 3.5
Question5: Black coffee vs. Pure water
Black coffee: pH 5
Water: pH 7
Question6: Bleach vs. Ammonia
Bleach: pH 12.5
Ammonia: pH 11
Question7: Soda (Cola) vs. Milk
Cola: pH 2.5
Milk: pH 6.5
Question8: Tomato juice vs. Banana
Tomato juice: pH 4.2
Banana: pH 5
Question9: Toothpaste vs. Milk of magnesia
Toothpaste: pH 8
Milk of magnesia: pH 10.5
Question10: Rainwater vs. Tap water
Rainwater: pH 5.5–6
Tap water: pH 7
Question11: Lye (drain cleaner) vs. Bleach
Lye: pH 13–14
Bleach: pH 12.5
Question12: Yogurt vs. Vinegar
Yogurt: pH 4.4
Vinegar: pH 3
Question13: Orange juice vs. Apple juice
Orange juice: pH 3.5
Apple juice: pH 3.75
Question14: Sea water vs. Soap
Sea water: pH 8
Soap: pH 9–10

Answers

1. Lemon juice is more acidic.2. Water is more neutral than milk.
3. Soapy water is more alkaline.4. Stomach acid is stronger acid.
5. Coffee is mildly acidic.6. Bleach is more strongly basic.
7. Cola is much more acidic.8. Tomato juice is more acidic.
9. Milk of magnesia is more alkaline.10. Rainwater is slightly more acidic.
11. Lye is extremely basic.12. Vinegar is more acidic.
13. Orange juice is slightly more acidic.14. Soap is more alkaline.

2 thoughts on “pH Comparison For Kids”

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