從生物學上，我們知道澱粉可以經由唾液中酵素的分解而成為簡單的糖，我們也想知道胃液中的鹽酸除了殺菌之外是否可以幫助澱粉的分解？在化學第三冊我們剛學過酸的水解，於是我們請教老師胃液中鹽酸 PH 值人約多少？胃酸是否可以促進澱粉之水解？如果不能，那麼鹽酸的濃度要多少才能使澱紛水解為糖？除了酸的濃度之外，有沒有其他可能影響澱粉水解之因素？因此我們設計了以下實驗。

Balance Controller or B. Con is the latest millennium innovation that is very safe and effective in solving balancing problem of electrical equipments and furniture caused by uneven surfaces. This system includes syringe, liquid, and control panel. It is operated manually with the help of an indicator liquid B. Con does not only solve the balancing problem but it is also equipment that could prolong the durability of the electrical equipment or furniture.

導電高分子在各面之應用非常廣泛，其中聚苯胺因價格便宜，製作簡便，使其應用潛力更為突出。聚苯胺在鐵系及非鐵系金屬之防蝕能力已被證實，但由於聚苯胺與金屬之附著力不良使其應用受到限制。本文以提高聚苯胺在有機溶劑中溶解度以達到和金屬有效附著增加其防蝕能力為主，而奈米粒子所具有的表面效應、小尺寸效應及宏觀量子隧道效應，可為研究目標之一。但由於高分子奈米微粒之製備仍屬有限，故仍在研究中。 \r The development and application of the conducting polymer poly-aniline is getting\r prosperous and popular. The capability of poly-aniline in corrosion protection has\r been proved. But due to the adhesion of poly-aniline on the metal is poor, the applications\r are restricted. In this paper, the authors utilized how advance the solubility of\r poly-aniline in organic solution to modify the adhesion of poly-aniline on the metal\r in order to improve the effect of the corrosion protection of poly-aniline in ferrous\r metal. And the nanoparticles have the special effects such as the surface effect,\r the small size effect and the macro-quantum channeling effect. It can be an object\r for research.

稀子蕨（Monachosorum henryi Christ）生長在台灣中海拔山區，是少數具有特殊生殖方式(不定芽)的蕨類。本研究對東眼山的稀子蕨族群進行物候調查，以了解其進行孢子繁殖及不定芽繁殖的過程，並試圖探討稀子蕨的不定芽是否可增加其族群對環境的適應性。研究結果顯示稀子蕨的孢子體及原葉體都無法在乾旱的環境下生存，常有大規模乾死的現象；而其不定芽則具有很強的耐旱性，無論是在季節普遍性及幼苖發育程度上，生殖芽都比孢子繁殖較佔優勢。而且其不定芽於旱季結束後，可迅速萌發，長出的孢子葉可隨之進行有性(孢子)及無性(不定芽)生殖，使其族群不至於在旱季中有地區性滅絕之虞。;Monachosorum henryi Christ , which exists in the middle elevations of the mountainous regions of Taiwan, is a fern with a special reproductive system seldom found in other ferns.This study investigates the phenology of Monachosorum henryi population in the Don Yang mountain region. Its purpose is to understand the sexual and asexual reproductive cycles of these ferns and to interpret whether or not the buds can increase the fitness of their population during the dry season.The results show that it is extremely difficult for the sporophyte and prothallus of Monachosorum henryi to survive in a drought. However, the buds have a much stronger drought endurance. According to this investigation, the adventitious buds of Monachosorum henryi are superior to the spores in seedling development in every season. Adventitious buds are able to germinate soon after the dry season as well as in any other season, and are able to grow spores and buds on their fronds enabling both a sexual and asexual way of proliferation. In this way the fern avoids a district extinction of their population.

本實驗是將白砂糖溶於水，裝入寶特瓶中，放入冰箱結冰，完全結冰後再利用鋸子將含有白砂糖的冰塊鋸成五層，待其融化後，測量每層的比重大小，以瞭解：1.固定結冰速度，改變糖水濃度；2. 固定糖水濃度，改變結冰速度；3.固定糖水濃度與結冰速度，改變結冰時放置方式，在這三種情形下其濃度梯度的分布情形，更進一步試著做出使白砂糖能在冰棒中分布更均勻的冰棒。

一般學生對於學校課程學習的負擔，再加上對本身的自信心不足，往往導致學生自己所「背」的東西不是十分確信是否有真正記進腦中，也常常困擾著他們。因此，引發本小組想設計一個可以自我評測且可以立即得到成績的輔助學習機;在研究過程中，本小組設計記憶學習機不但可以做到使用者自我評測的功能，還可以讓使用者馬上得到檢測的結果並且使用者可以回顧先前成績欄紀錄;記憶學習機經過本小組組員的辛苦孕育下誕生，本小組便拿著「它」讓班上同學認識，雖然「它」不是同學心中的最佳主角，但是同學卻一致認定「它」是『最佳伴讀夥伴』。本作品主要功能有:1．能調整使用者所要求的測試時問。2．該作品能記憶此次測試成績，以便和下次相互比較。3．依使用者的需求選擇中文、英文、數字及遊戲模式做記憶訓練。4．能有立即性的成效及回饋。 Due to the pressure of courses and lack of confidence, many students are often not sure of what they have recited on a lesson previously, which in turn always disturbs and cut down learning confidence of students. To eradicate the obstacles they encounter, we decide to research into this topic. A memory-based learning-aided machine is designed for students to self-evaluate themselves and to get the feedback at once. In the process of development, the memory-based learning-aided machine not only lets users practice the exercise of their own, but also is able to derive the outcomes immediately and retrieve the previous records effectively and efficiently. We strive to make this learning-aided machine at its best performance as possible as we can. Besides, the memory-based learning-aided machine provides the alternatives for the users to answer the question in a way that they like. For example, users can answer questions in English mode, can choose the limit time into test themselves in a time. In addition, the system can expand its material by inputting data into the knowledge base. By our group members' lasting efforts, the learning-aided machine was created, finally. According to the result of experiment that we applied to the classmates, we conclude that the memory-based learning-aided machine is the best assistant and learning partner for the students. We would like to introduce it to classmates and hope they will be interested in using it to enhance their learning motivation and performance.

本實驗主要是著重在如何做出環保、可食用又不傷身的粉筆，以碳酸鈉加食用石膏為雛型，加入各種不同的物質(食品)，做出成品，並由實驗得知我們的自製粉筆密度較大、粉塵量較少且毒性也較小。雖在成本上比市售的粉筆成本高一些，但是可以回收再製，經濟效益好。

It is always fascinating to see water droplet’s dancing around on a Japanese teppanyaki hotplate surface. The water usually does not evaporate immediately, but form interesting shapes, dance around and follow by evaporation of gaseous water and disappear. In this experiment, we designed a very simple experimental set-up to observe the little water droplets dancing on a heated hotplate. A homemade stainless plate and a small heater attached to the plate, and a thermal couple was assembled. With this simple setup, we observed the variation of water droplet’s shape as a function of the hotplate temperatures. The temperature of the water droplets, the duration of the water on the hotplate, and the shape number were measured. The shape formation mechanism was proposed. We found when the water droplet was subject to high heat due to the contact of the surface and the hotplate, the abrupt evaporation of the water molecules and violent vibration cause the formation of the various shapes to reach thermal equilibrium; the number of the shapes and the oscillation can be described by Laplace’s equation,Using a high-speed camera, we found the higher the temperature of the water, the more variations of the water droplet shapes can be observed. In addition, at a certain temperature range, the number of the water shapes did not change, suggesting a similar phase transformation behavior on the shape formation. 緣起： 邂逅專題研究、水珠漫舞、剪輯影片，引起我們想更進一步揭開它的神秘面紗。 緣續： 了解熱平台上水滴大小的變化及水珠基本的形狀及變化律動。 緣繫： 進一步研究水珠多變的面貌，並探討水珠的大小、溫度、停滯時間及變化規律相關機制。 緣定： 糾纏在水珠圓舞曲中有如大珠小珠落玉盤的曼妙，其中埋藏了平均圓與能量量子化的律動。

Y擺是迷人的科學之旅！來自百貨公司"動能沙擺"的啟發，奇異的圖形深深打動我們的好奇心！它沒辦法用一般的單擺週期來觀察，當它擺出複雜的圖形時，讓很多人都感到不知道如何研究。剛開始進行實驗很迷惑，但是我們仍不怕辛勞，不斷探索其中的奧秘。提出ABH1H2標示法、定義T、Tx、Ty三項測量值，研究在不同象限、擺幅、角度、AB、H1與H2長度變化、擺繩材質、抖動的影響；與傳統的頻率估算法m：n及Java程式比對，得到Ty/Tx取代m：n的新方法，促使我們積極地去探究箇中所藴含的物理奧妙！提出新方法以初始條件－長度(L、l )估算擺圖變化，導出Y擺方程式與重力加速度g，實驗g值與理論g值相比，誤差可在3%以內！最後，請您DIY感受它的美！Trust me,You can make it.

太魯閣峽谷是怎麼形成的？ 幾億年前，太魯閣一帶地區是生物眾多的淺海，海中生物死後，骨骸(如：珊瑚礁)堆積在海底形成石灰岩，深埋在地下。後來受到地殼變動的影響，石灰岩變質為大理岩。 數百萬年以來，在板塊運動的作用下，原本深埋在地下的大理岩層逐漸露出地面，至今仍持續被抬升。因為岩層長得「又快又高」，造成溪水快速奔流，侵蝕的力量也變得更強。像利刃般的溪水不斷地向下侵蝕、切割，使得河谷愈來愈深，再加上大理岩層的質地堅硬，不易崩塌，河岸兩側的岩壁始終「屹立不搖」，終於形成令人嘆為觀止的峽谷奇觀。 除了大理岩以外，在這處峽谷範圍裡，有些綠色或黑色片岩層，像是一層層薄脆的千層酥，在陽光下閃閃發亮，可是，這樣的岩石非常脆弱，一但遇上豪雨強風，極容易發生崩塌，整片岩層沿著山坡跌落深谷。綠色片岩的前身可能是火山噴發的灰塵碎屑，而黑色片岩則是由沉積在海底的泥巴演變而來。 有些片岩身上有著彎曲線條和石英脈，質地比較堅硬，通常含有較多的石英礦物，極可能是由原本埋藏在地層中的石英沙粒變質而來的。 除了大理岩與片岩，在太魯閣峽谷裡，還有其他種類的變質岩，而且身旁的岩層或大石塊，往往並非只由一種岩石構成。顏色相異、質地不同的各種變質岩，經常彼此互為夾層，形成了凹凸有致、深淺相間的岩石景觀，也增添了峽谷的繽紛色彩。 大理岩有哪些用途呢？ 大理岩是由石灰岩變質而來的，兩種岩石成分相同，被鹽酸滴到都會產生二氧化碳氣泡。在變質過程中，石灰岩裡的礦物會重新結晶，形成細緻、光滑的大理岩。大理岩有白、灰、黑等顏色，外表常有不同的紋理，是很好的建築、雕刻石材，也可做為製造水泥的原料。

在五上的自然與生活科技課程中，我們發現不是只有胡蘿蔔才能與雙氧水產生氧氣，運用學校營養午餐剩餘的水果果皮─香蕉皮、橘子皮，也能與雙氧水發生作用，製造出使用線香檢驗時有明顯助燃效果的足夠氧氣。秉持著不浪費的精神，我們收集了校園植物的葉子，發現多數都能與雙氧水作用，製造氧氣，其中以咸豐草的效果最好，生長位置低矮，學生易取得；30%的雙氧水50cc與1克的咸豐草就可以產生足夠的氧氣，線香檢驗有助燃效果。值得注意的是：不同採集地點的葉子，會影響氧氣製造量的多寡，所以建議選擇日照時間長的植物的葉子，作為雙氧水的製氧催化物。

COVID-19肺炎病毒肆虐全球，強調用肥皂多洗手，已是大家認為最有效的防疫作為。有鑑於此，本研究希望透過學習肥皂製作過程，探討「皂化反應」的溫度、重量與pH的變化，以及「皂化現象」的影響因素，最後嘗試製作防疫抗菌手工皂分送給全校班級，共同為防疫盡一份地球公民的責任。研究中分別觀察皂化過程的pH值、硬度與去污力，發現皂化過程中的油品種類、油品溫度、鹼水與油品間的溫度差、氫氧化鈉的量、油品比例、環境溫度，都會不同程度的影響成皂情形。我們也發現，在實驗中設定的任何溫度都能成皂，而非一般認知的特定溫度。最後，利用實驗室培養的純化大腸桿菌，測定以艾草液、左手香液製成的肥皂有不錯的殺菌效果喔！