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!
Ripening fruit 水果的成熟
Have you ever noticed that fruit left in a bowl with ripe
bananas spoils quickly? This week we're going to find out why.
PHOTO: CATHERINE THOMAS, TAIPEI TIMES
What you will need:
Thirteen unripe tomatoes (green)
Four ripe bananas
Three unripe bananas (green)
Ziplock bags
Paper bags
Three bowls
Sticky labels (or paper and sticky tape)
▲ As you make up each bag or bowl, label it so that you can keep track.
▲ Place a tomato and a ripe banana in a ziplock bag. Seal the bag. Make up another bag exactly the same.
▲ Place a tomato and a ripe banana in a paper bag. Seal the bag. Make up another bag exactly the same.
▲ Place a tomato and a ripe banana in a bowl. Make up another bowl exactly the same.
▲ Place a tomato and an unripe banana each in a sealed ziplock bag, a sealed paper bag, and a bowl. Make up another two bags and a bowl exactly the same.
▲ Place an unripe tomato in a ziplock bag, a paper bag and a bowl. These are your control tomatoes. Seal the bags.
▲ Put one of each type of bag or bowl in the fridge.
Leave the others on the counter.
▲ After a few hours check on each bag and bowl and note any changes that have occurred.
▲ Let the fruit sit for two days, checking it every few hours. If you like you can eat each fruit as it becomes ripe, so that you don't waste it. Do you think the fruit tastes different depending on how it was ripened?(catherine Thomas, staff writer)
你曾經注意到若碗中放了成熟的香蕉,其他水果也會很快跟著腐壞嗎?本週我們將探索原因何在。
所需材料︰
十三顆未成熟的蕃茄(綠色)
四根成熟的香蕉
三根未成熟的香蕉(綠色)
密封袋
紙袋
三個大碗
標籤貼紙(或是紙和膠帶)
▲ 當你在準備密封袋和碗時,將它們個別貼上標籤以利記錄。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個密封袋中後密封,再另外準備完全相同的一份。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個紙袋中封好,再準備一份完全相同的。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個碗中,然後再準備一份完全相同的。
▲ 將一顆蕃茄和一根未成熟的香蕉做為一組,各放一份至可封口的密封袋、可封口的紙袋和碗中。接著再另外各別準備一份完全相同的。
▲ 分別密封袋、紙袋和碗中放入一顆未成熟的蕃茄,這三份是你的控制組。將袋子封口。
▲ 將每種分類的碗或袋子各放一份至冰箱中。剩下的則留在流理台上。
▲ 經過數小時後,檢查每一個碗和袋子,並記錄下變化的情形。
▲ 將水果放置兩天,每隔幾個小時就檢查一下。水果熟了的話可以吃掉,這樣比較不會浪費。你覺得用不同方式熟成的水果口感也不同嗎? (翻譯︰袁星塵)
A: Although the scandalous Eastern superstar Kim Soo-hyun canceled his visit, Western superstar Andrea Bocelli is visiting Taiwan over the long weekend. B: Yup, the blind tenor will become the first Western artist to hold a concert at the Taipei Dome tonight. A: Pop diva Celine Dion even praised him: “If god would have a singing voice, he would sound a lot like Andrea Bocelli.” B: I love their duet, “The Prayer.” I even played the song at my sister’s wedding for the newlyweds. A: Two Taiwanese singers, A-mei and A-lin, sang with Bocelli before. It would be great
In the vast landscapes of Australia, a unique and charming creature roams — the “wombat.” These round, adorable animals possess surprising abilities and fascinating traits that never fail to amaze. Let’s explore the world of this remarkable creature. Wombats are marsupials native to Australia, measuring around one meter in length and weighing between 20 and 35kg. Their fur varies in color, ranging from brown to gray to black. As herbivores, they primarily feed on grass, bark and roots. To adapt to Australia’s weather conditions, wombats have developed a slow metabolism and a leisurely pace. However, despite their bulky appearance,
Bilingual Story is a fictionalized account. 雙語故事部分內容純屬虛構。 Echo pulled out a worn and tattered shoe box under father’s large oak desk. “Mariko, what should we do with these family photos?” Mariko stared at the old box with a slightly hurt expression, and then blankly at the photos. “Throw them in the garbage pile. . . along with that old, ratty box,” she murmured. She resented that her father had not cared enough to find a nicer home for the family photos. “Father never really cared about me anyway.” Echo’s emotion sensor detected sorrow. ”Mariko, that is
A: The four-day long weekend for Tomb-sweeping Day begins today. Are you going south to sweep tombs this weekend? B: I went south early last weekend, so I could attend South Korean actor Kim Soo-hyun’s show at the Kaohsiung Sakura Festival, but he canceled his visit after a scandal broke out. A: The late actress Kim Sae-ron’s family accused him of dating her since she was a minor, at just 15 years old. Fans are shocked. B: Didn’t the media report that the age of consent in South Korea used to be 13? Technically, he didn’t break the law. A: