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理化-國中7-9年級(四)
過濾條件

搜尋相關的資源 830
Gb-Ⅳ-1-S02-資源代表圖
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4
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!-資源代表圖
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354
修改日期:2026-02-23
ios
時間倒數-資源代表圖
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1696
下載數7
修改日期:2026-02-17
自然系列-化學|物質探索02】(煉金術的故事)湖之煉金術師-10秒教你銅牌變黃金-資源代表圖
湖中女神把銅幣變成銀幣,又變成金幣!太神奇了!這就是煉金術嗎?讓我們跟著湖中女神探索煉金術的起源吧!最早的煉金術來自古埃及,傳到阿拉伯後,再傳入歐洲。雖然沒有練出黃金的證據,仍留下許多重要的發現。
觀看次數503
下載數0
修改日期:2026-02-06
【自然系列-物理 | 聲學】 (聲學)聽見宇宙的聲音-part2-資源代表圖
波以耳拿玻璃罩蓋住鬧鐘,把空氣抽去,鬧鐘的聲音就聽不到了。由此他認為聲音需要媒介才能傳播,所以真空的宇宙不可能像畢德哥拉斯所說充滿聲音。
觀看次數436
下載數0
修改日期:2026-02-06
【自然系列-化學 | 酸鹼01】(酸鹼的分辨)拉瓦節の酸鹼變色大作戰-上集-資源代表圖
【自然系列-化學 | 酸鹼01】(酸鹼的分辨)拉瓦節の酸鹼變色大作戰-上集
觀看次數496
下載數0
修改日期:2026-02-06
【自然系列-物理 | 電磁學04】(庫倫定律) 0.04的誤差-資源代表圖
18世紀,牛頓風靡整個歐洲,而庫倫在社會風氣的薰陶下成為牛頓的粉絲,並相信與萬有引力相似的靜電力,其背後的公式應該跟萬有引力公式是一樣的,不過庫倫沒什麼好方法能證明,只好找來他的好友卡文迪西來幫忙。到底庫倫能不能證明自己的想法,卡文迪西又會怎麼幫忙庫倫呢?
觀看次數501
下載數0
修改日期:2026-02-06
【自然系列-化學 | 物質探索09】(質子與原子核的發現)超原子時空冒險—二部曲-下集-資源代表圖
拉塞福發現了原子內部並不像是西瓜模型,反而更像是一包洋芋片!?原來原子內部跟洋芋片一樣大多是空的,只有中心有一顆神秘的原子核,甚至成功把元素轉換成另一種元素,然而跑出了共同具有正電的粒子,這究竟是怎麼回事呢?
觀看次數452
下載數0
修改日期:2026-02-06
【自然系列-化學 | 化學反應01】(可逆反應)遠征埃及大發現-上集-資源代表圖
當時普遍認為化學反應會發生是因為兩個物質間存在吸引力,其中一個物質消耗殆盡時反應就結束,所以化學反應是不可逆的,但是科學家貝托萊卻在被徵召的旅途中,卻發現可以逆向的化學反應?難道貝托萊將要發現化學反應的另一個祕密了嗎?
觀看次數472
下載數0
修改日期:2026-02-06
【自然系列-化學 | 酸鹼03】(電離說與離子)不被承認的電離說-下集-資源代表圖
你能想像離子在還沒有通電前就存在了嗎?阿瑞尼士把他畢生的賭注都賭在這場發表上了,在三位鐵面教授面前,他開始發表了研究已有的:解離說!
觀看次數432
下載數0
修改日期:2026-02-06