歡迎閱讀《週日科學版》!我們每週日都要為你介紹可以在家中進行的有趣科學實驗。你可以在《科學日誌》中記錄自己做了哪些活動,這樣就可以將所學的紀錄下來,比較這些結果,也許還可以利用它們來設計新的實驗!先看一下《科學日誌》的點子再開始吧。展開實驗之前,記得要獲得大人許可喔!
Have you ever wondered if plants lose water from their leaves? This week we're going to do an experiment to find out.
What you will need:
Various kinds of leafy plants
PHOTO: MICHAEL KEARNEY, TAIPEI TIMES
Small plastic bags or ziplock bags
Tape (optional)
▲ Before you start, note that this works best on plants exposed to the sun.
▲ Put a plastic bag around one leaf on each plant. Close the bag in such a way that water won't be able to easily escape. Be careful not to crush the stem of the leaf.
▲ Close another bag and leave it to one side. This is your control.
▲ Periodically take a look at the bags. Note how much moisture appears in each of the bags.
▲ After a couple hours, take the bags off the plants and record your observations.
(MICHAEL KEARNEY, STAFF WRITER)
你是否曾想過植物內的水分會不會從它們的葉子流失呢?這個星期,我們將要做實驗來驗證。
所需材料︰
各類多葉植物
小塑膠袋或是封口袋
膠帶(可有可無)
▲實驗以前,請注意:如果將植物暴露在陽光下,實驗效果會最好。
▲將塑膠袋套在每一株植物的其中一片葉子上,然後將袋口封好,讓水氣不容易跑掉。請小心不要把葉柄給壓壞了。
▲將另一個塑膠袋也封好,然後放置一旁,作為對照組。
▲定期觀察這些塑膠袋,注意每一個袋子有多少水氣出現。
▲數小時後,將塑膠袋從植物上拿下來,並記錄所觀察到的現象。
(翻譯︰楊鴻泰)
Recently, the Iraq parliament’s preliminary approval of a controversial proposal to drastically lower the legal marriage age for girls from 18 to nine has sparked widespread concern. This move has drawn strong reactions both domestically and internationally, as many worry it will exacerbate child marriage issues and severely infringe upon women’s rights. At the UN Convention on the Rights of the Child in 1994, Iraq explicitly prohibited the legalization of child marriage. Currently, the legal marriage age for both men and women is 18, although women can marry at 15 with a guardian’s consent. The newly proposed amendment to the Personal
The chimney cake is a beloved treat with a rich history in Hungary and Romania. While written references to the cake appeared as early as the late 17th century, the earliest known recipe from 1784 is __1__ a noblewoman named Maria Mikes, who wrote about dough wrapped around a spit. Legend has it, however, that the existence of this delicacy actually goes much further back in time, to the Mongol invasion of the 13th century. The cake’s iconic hollow, cylindrical shape, which is reminiscent of a chimney, is achieved by wrapping yeast dough around a wooden spit and roasting
A: Any plans for Valentine’s Day tomorrow? B: I’ll go to karaoke with a group of fans to celebrate the 40th anniversary of the late pop diva Whitney Houston’s debut. A: Sounds like fun. B: She released her eponymous album “Whitney Houston” on Feb. 14, 1985, launching a glorious career that spanned over four decades. A: Can I join you for karaoke? A: 明天情人節你要幹嘛? B: 我要和一群歌迷去KTV,慶祝流行天后惠妮休斯頓出道40週年! A: 哇好像很好玩。 B: 她在1985年2月14日發行同名專輯《惠妮休斯頓》,並開啟了輝煌的40年演藝生涯。 A: 我能跟你一起去KTV嗎? (By Eddy Chang, Taipei Times/台北時報張聖恩)
A: I remember that the late pop diva Whitney Houston’s 1985 debut album “Whitney Houston” is a diamond album, meaning it sold over 10 million units in the US. B: Her 1987 album “Whitney” and 1992 soundtrack “The Bodyguard” have also reached diamond status, making her the only black singer with three diamond albums. A: Many people think that her songs are difficult to sing. B: I challenge you to sing her megahit “I Will Always Love You” at tonight’s karaoke party. A: OK, challenge accepted. A: 我記得流行天后惠妮休斯頓的1985年出道專輯《惠妮休斯頓》還是一張鑽石唱片呢,表示在美國狂賣超過1千萬張。 B: 她1987年的次張專輯《惠妮》、1992年的電影《終極保鑣》原聲帶也獲得鑽石唱片認證,使她成為唯一擁有3張鑽石唱片的黑人歌手! A: 而許多人覺得她的歌都很難唱。 B: 那我挑戰你在今晚的KTV派對唱她的名曲《我將永遠愛你》。 A: 好啊我接受你的挑戰。 (By Eddy