Test each substance with wet blue and red litmus paper
Enjoy doing experiment!!!
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About Me
- Ham Yap Tyug
- I always told my students that “ the ball are round, it rolls, it flights, it jumps and it hits but it does not think, the only one to think, to insight, to analyze are you, you decide its direction and you empower it, ” I insisted my way of training, combined mindset and physical skills.
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