Today,we do the experiment to find the natural pH indicator.

 The result of blue berry.

 The result of kiwi fruit.

 The result of black bean.

 The result of curry powder.

The result of  purple cabbage.

It is so rainbow and beautiful.

From the result, we select purple cabbage as the Hp indicator.

The color NaOH with purple cabbage before titration is green.

The color NaOH with purple cabbage after titration is colorless.

--------------------------------------------------------------------------------------------------------------------------

今天,夾了兩小時band,感覺好正啊!!!

我們計劃了表演的安排,萬事具備。

很期待當日的表演,那天可能是我生命出現重大改變的一天!