Inspired by this. We thought of having fun with things found in our kitchen.
Making a liquid indicator that helps us to figure out which food, drinks or detergents are acids or alkalis.
1...Cut the red cabbage into tiny pieces.
2...Put the pieces into a big glass bowl.
3...Add boiling water and stir the mixture.
4...Leave it to cool.
5...Pour the cabbage water through a strainer into a jar.
The liquid is the indicator.
We started the test with lemonade and baking soda.
Lemonade turned the indicator reddish pink, indicating it's an acid.
Baking soda turned the indicator into a beautiful blue green, indicating it's an alkali.
We tried with things iza shortlisted : Lemon, baking soda, honey, chicken broth, milk, soya source, cod liver oil, vinegar, shampoo, glass cleaner and water ( can be anything provided it's safe ).
Watch the color changes. You will know which is acid or alkali.
We cross referenced with pH indicator papers.
When you mix the liquids with baking soda and lemonade (or vinegar) together, you will see furious bubbles. If we mix the right amount of acid and alkali, they will cancel out each other and make a neutral (salt) again. But we didn't get the right balance :)
Wednesday, after a newextra-curricular activity (organized by school), she broughtthis home. She's so eager to explain everything to me ... and it has a secret function. The machine knows if you are good or bad! It is a good childdetector. Her tutor must bedoraemon. If not, he shall be Santa Claus who is making a list and gonna find out who's naughty and nice ...
A little piece of writing on a rainy day with her beloved kindergarten teachers, written by iza in 2010 Summer.
Published lately on her primary school website.
Children are encouraged to submit their writings. No matter it's good or not, every child has an equal chance to be selected. Their works are drawn randomly. Iza is fortunate to have writings published for a few times. I was moved when I saw this piece ... not because it was eventually published after being submitted for more than a year ... it's the love and the attachment sprouts from the 3 years ( the years of kindergarten, her early years ).
只要投稿,都有同等機會被抽中。不是這篇寫得多麼的好, 只是那3年情誼, 不只珍貴。
I try to do the translation ... please be excused as I'm not doing it well.
"July 21 (2010) Rainy day
That day, I went to Disneyland with three of my kindergarten teachers. I love very much my K1 class teacher, Miss Hung. She is gentle. My K2 teacher Miss Chung is playful. We love to make fun with each other. Miss Chan, my K3 teacher, is funny. She loves to joke.
Although the weather was not good, we decided to continue our date because we had planned this for a long time. Miss Hung's umbrella could not uptake the rain loads, it broke. Therefore, she bought a new umbrella in a disney store. We were all surprised that it was so expensive. It costed HK 150. The rain was really heavy, though I had my raincoat on, I was all wet. However, I loved to play in the rain.
When we rode on the roller coaster, I was so scared that I closed my eyes and pretended I had fallen asleep. I heard the people crying, so loudly. We also got onto a rotating coffee cup, it whirled so fast that we almost spun out of it. However, it was sad that typhoon signal number 3 was hoisted at 3 o'clock in the afternoon. All outdoor facilities were closed. I could not ride on the Mary-go-round which I love most. I was very upset. I am looking forward to the next dating with my teachers!"