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搜尋相關的資源 847
Aa-Ⅳ-1-S04 05:46
video Aa-Ⅳ-1-S04
教育部/教育部國中8-9年級
元素符號旁的數字代表不同的資訊:左下角是原子序(質子數);左上角是質量數(質子數+中子數)
觀看次數539
修改日期:2026-03-03
Ka-Ⅳ-4-S03 08:10
video Ka-Ⅳ-4-S03
教育部/教育部國中8-9年級
知道超聲波與其應用及認識不同生物的聽力頻率範圍
觀看次數521
修改日期:2026-03-03
Ca-Ⅳ-2-S01 03:39
video Ca-Ⅳ-2-S01
教育部/教育部國中8-9年級
利用化學性質來辨認並鑑定化合物
觀看次數502
修改日期:2026-03-03
Gb-Ⅳ-1-S02 05:45
video Gb-Ⅳ-1-S02
教育部/教育部國中8-9年級
介紹各種化石為生物演化的最直接證據,並說明活化石非為化石。
觀看次數632
修改日期:2026-02-26
用水管隔空吸引鋁罐?│《科科學會了》把課本的「靜電(摩擦起電)」變有趣! 05:54
靜電是什麼?靜電指的是電荷在物體表面不平衡分佈所引起的現象,當兩個物體互相摩擦時,電子會從一個物體轉移到另一個物體上,這種因為電子轉移而產生的電荷現象,就稱為靜電。靜電不會像電流一樣流動,它是暫時停留在物體表面的電荷,直到遇到導體或接地後才會釋放。以日常生活中的例子來說,當我們用塑膠梳子梳頭髮時,會發現頭髮變得容易吸在臉上,這是因為梳頭的過程中,電子從頭髮轉移到梳子上,使頭髮和梳子帶靜電,與臉產生吸附現象。
觀看次數1445
修改日期:2026-02-23
ios
時間倒數
app 時間倒數
洪琮欽/台南市網路中心國小1-4年級,國小6年級~國中9年級
Digital sand timer with artistic design. Time flows and does it stylishly. This digitized hourglass can be used to time anything for up to 60 minutes. It's like having a nice looking visual indicator of how much time is left on your task.* KIDS FRIENDLYTimer visualizes time to kids and lets them feel the time. Without reading or even knowing the numbers one can look at the visualized time flow, feel it and understand how long to wait or whether to hurry up.* STAY NOTIFIEDIt lets you set the alarm sound that will play when the timer is finished. You can choose from 16 unique alarm sounds, melodies and loops. You’ll be notified when your time is up even if you’re using another app or your device is locked. It can also repeat the sound alarm (up to 3 times) at the given interval if it was missed/snoozed.* COLOR YOUR TIMEYou can easily change the timer color to fit your personal lifestyle. There are 5 color themes: turquoise, red, green, amber and pink. Just pick the one you like in the application settings.* UNIVERSAL APPTimer works both on your iPhone/iPod and iPad, contains HD graphics for retina and iPad displays and supports all screen orientations for all devices. [+Retina graphics for iPad 3rd generation]* SEE ALSO: Best TimerBeautifully designed sand timer, stylish kitchen timer, countdown/up and powerful stopwatch All in one creatively combined Best Timer application to suit all your timing needs. Search "Best Timer" on iTunes (http://itunes.apple.com/app/best-timer/id415656570) 洪琮欽 時間倒數 Digital sand timer with artistic design. Time flows and does it stylishly. This digitized hourglass can be used to time anything for up to 60 minutes. It's like having a nice looking visual indicator of how much time is left on your task.* KIDS FRIENDLYTimer visualizes time to kids and lets them feel the time. Without reading or even knowing the numbers one can look at the visualized time flow, feel it and understand how long to wait or whether to hurry up.* STAY NOTIFIEDIt lets you set the alarm sound that will play when the timer is finished. You can choose from 16 unique alarm sounds, melodies and loops. You’ll be notified when your time is up even if you’re using another app or your device is locked. It can also repeat the sound alarm (up to 3 times) at the given interval if it was missed/snoozed.* COLOR YOUR TIMEYou can easily change the timer color to fit your personal lifestyle. There are 5 color themes: turquoise, red, green, amber and pink. Just pick the one you like in the application settings.* UNIVERSAL APPTimer works both on your iPhone/iPod and iPad, contains HD graphics for retina and iPad displays and supports all screen orientations for all devices. [+Retina graphics for iPad 3rd generation]* SEE ALSO: Best TimerBeautifully designed sand timer, stylish kitchen timer, countdown/up and powerful stopwatch All in one creatively combined Best Timer application to suit all your timing needs. Search "Best Timer" on iTunes (http://itunes.apple.com/app/best-timer/id415656570)
點閱數1999
下載數7
修改日期:2026-02-17
【自然系列-物理 | 電磁學01】(電與磁的發現) 御前科學對決 07:38
中世紀的歐洲人普遍認為,電與磁是一樣的,而當時的英國御醫吉爾伯特,針對這件事情提出質疑,並向當時最博學的義大利學者波爾塔展開了一場對決。
觀看次數692
下載數0
修改日期:2026-02-06
【自然系列-物理 | 彈力】(游絲彈簧的發明與虎克定律)惠虎專利爭奪戰-part1 05:48
學者惠更斯發表擺鐘的發明,卻被學者虎克鬧場。原來擺鐘早在好幾年前就被伽利略提出,而且擺鐘遇到晃動就會失準。被虎克一鬧,同時解決不了晃動問題的惠更斯,卻被神秘人物找去,這個人是誰?
觀看次數851
下載數0
修改日期:2026-02-06
【自然系列-物理 | 氣壓】(大氣壓力)藏在幫浦裡的OO -part1 06:05
從前的人們相信,幫浦能抽水,因為萬物討厭真空,幫浦內出現真空,水面就會上升消滅真空。只是有些井怎麼抽也抽不出水,領主莫可奈何,只好去找「他」。
觀看次數540
下載數0
修改日期:2026-02-06
【自然系列-物理 | 摩擦力】(永動機與摩擦力)阿蒙頓房間裡的秘密-part1 05:10
自伽利略提出慣性定律以後,科學家們相信「永動機」存在,阿蒙頓也是其中一位。他成天在家做實驗不工作,挨母親罵是家常便飯,但他依然我行我素,直到有一天他照著「永動機筆記本」操作的時候……
觀看次數904
修改日期:2026-02-06