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!
Temperature’s effect on molecular speed
溫度對分子速度的影響
In this experiment we’re going to find out if temperature affects the speed of molecules in water.
PHOTO: MICHAEL KEARNEY, TAIPEI TIMES
What you will need:
Six clear glasses
Food coloring
Water (cold, room temperature and hot)
Salt
A spoon
►Fill two glasses with cold water, two with water that is about room temperature and two with very hot water. You can use ice or a freezer to get cold water, but when you’re doing the experiment, none of the water should be frozen. Be careful not to burn yourself with the hot water!
►Put about a teaspoon of salt into three of the glasses (one of each temperature). Stir.
►Wait a few minutes for the water you just stirred to stop moving. It’s important for the next step that the water in each glass is absolutely still.
►Add two drops of food coloring to each of the glasses. Observe the way the food coloring moves through the water.(MICHAEL KEARNEY, STAFF WRITER)
在本實驗中,我們要來查明溫度是否會影響水中分子的速度。
所需材料︰
六個乾淨的玻璃杯
食用色素
水(冰水、溫水和熱水)
鹽
一個湯匙
►裝兩杯冰水、兩杯室溫下的水,和兩杯非常燙的熱水;你可以用冰塊或冰庫製成冰水,但在進行實驗時,不能用結冰的水;用熱水的時候要小心別燙傷自己!
►在三杯水中(三種溫度各一)各加入一茶匙鹽巴,然後攪拌。
►等個幾分鐘,等你剛剛攪拌的水都靜止下來;杯中的水需完全靜止後才能進行下一個步驟。
►在六杯水中都各自加入兩滴食用色素,觀察食用色素在水中運動的情形。(翻譯︰袁星塵)
Computex, Asia’s biggest electronics conference, kicked off Monday in Taipei, and as in years past drew industry chieftains from Nvidia Corp.’s Jensen Huang and Qualcomm Inc.’s Cristiano Amon to Young Liu of Foxconn, which makes the bulk of the world’s iPhones and Nvidia servers. But while last year’s event was a celebration of the post-ChatGPT AI boom, executives this time are likely grappling with the uncertainty of the Trump administration’s effort to reshape the global trade order — disrupting a decades-old model for tech manufacturing. This year’s exhibition will of course feature the hardware required to bring artificial intelligence to life.
A: Where will the 35 sports of the 2025 World Masters Games be held? B: Apart from Taipei and New Taipei City, some games will take place in Yilan County, Taoyuan County, and Hsinchu County and City. A: The news says about 25,000 people, including many celebrities and sports stars, have already registered for the games. B: Even Taipei Mayor Chiang Wan-an, who is 47, registered for softball and squash. New Taipei Mayor Hou You-yi, who is 68, also registered for table tennis. A: And it will be the largest sports event ever in Taiwan’s history. How exciting. A:
Dog owners often wish they could understand their pets’ thoughts. “Dog buttons” might turn their dream into a reality. These specially designed buttons, __1__ sound chips, enable dogs to communicate their needs by pressing buttons corresponding to pre-recorded words like “walk,” “play,” “outside,” and “food.” This bridges the communication __2__ between humans and their canine companions. The science behind dog buttons is based on the concept of associative learning. It’s a process __3__ learners can link actions with outcomes. For instance, if an owner consistently presses the “walk” button and then takes their dog for a walk, the dog
1. 眾所皆知,資訊產業是我國經濟的基礎。 ˇ As everyone admits, the IT industry is the backbone of our economy. χ As everyone admits that the IT industry is the backbone of our economy. 註:這裏 as 作關係代名詞,引導從屬子句。誤句多了 that, IT industry is. . . 就變成從屬句,欠缺了主句,結構上錯誤。又如: As my friend pointed out, necessity is the mother of invention. As is known to all, grammar is not the only important thing in language study. 2. 她心情總是非常好。 ˇ She is always in a good mood. χ She always is in a good mood. 註:always, often 一般放在行為動詞之前,連繫動詞、助動詞之後: He always behaves well. He is always happy and gay. He is always reading. 其他用法類似的副詞,還有 still、also、hardly、seldom、never 等。 3. 你看!他還在寫報告呢。 ˇ Look! He is still working