Chapter 5
summary and discussion of the action project
conclusion is as follows:
1. When the vinegar mixed with lime to value. PH was 4.0
2. When the lime mixed with pineapple juice returns pH was 3.0
3.When the vinegar mixed with pineapple juice returns pH was 4.5
.So when 4 lemonade mixed with pineapple juice, it is found that the pH value higher than the lemon juice mixed with water, orange and orange juice mixed with pineapple juice. We also found that when the juice obtained from the combination of the 3 type.30 minutes later 30 minutes. The coins found out wash clean coins in water mixed with valuable wood pH highest weighs the สะอาดมาก. Because the acid concentration is the most power, corrosion, acid concentration, respectively.
the benefits expected to be received from the experiment
1. The juice to clean dirty stain from the coins with
2. Be able to know the effect of the acid corrosion stains on the coins 3
.Can know that any kind of juice is very acidic and corrosive effect as the best
1 suggestions. We may take other fruit juice with acidic, easy to find in your household.
2.We may take this experiment to experiment with each other with the dirt stuck, such as necklaces, rings, key chain
_ bibliography _ _ _ _. Science textbooks more. The book 4 (chemical) Bangkok: 2550
_ _ _ _ _.Examples of science project from school dawn, Lampang
_ _ _ _ _. Dr. Prawit. Pokaeo ed D. The magazine to health, Dr. villagers. (acid is?). The 322: Bangkok: Publishing Co., Ltd., a village doctor 2550
_ _ _ _ _. Www.doctor.or.th
_ _ _ _ _. Www.google.com
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