環保捕蚊罐
-- 圖文出處: 網路 --
一個在網路流傳的小秘方,激發了小學生實驗靈感,經過不
「環保捕蚊罐」的環保之處,不只在利用資源回收的廢寶特
其實很多人都曾收到過這則網路偏方的電子郵件,指出只要
徐佳璋表示,剛看到這則網路偏方時,就懷疑是什麼東西誘
因此,師生動手實驗,希望找出更有效的誘蚊法。蚊子會被
徐佳璋表示,「環保捕蚊罐」研發成功後,曾創下單罐一周
而這項成果不但讓永安國小這群師生獲得全國科展特優,並
Material:
- empty bottle with 2000ml fill (as per pict)
- 50g sugar
- 1g yeast
- thermometer
- measuring glass
- blade
- black color paper
Step 1
- to cut the bottle into half
Step 2
- pour in 200ml hot water into measuring glass or any glass.
- add in 50g sugar and stir to melt
- place the whole glass of sugar water into cold water basin until the sugar water temperature turn 40°c or lower.
Step 3
- pour in sugar water into cutted bottle, spread yeast into it, do not stir as carbon dioxide will come out when ferment.
Step 4
- turn the half top bottle and place into the bottom half ( refer picture), make sure the bottle's opening cover were removed. Seal the side seam. Carbon dioxide will come out from the opening.
Step 5
- wrap the bottle with black paper, cuz mosq like dark enviroment
To place this bottle at corner of wall or some place is cold and wet.
( dont laugh if found any wrong typo or weird explain ya)— 在發粉 讓麵包蓬鬆的蓬鬆劑
0 留言:
張貼留言