平時若白米放太久沒吃完，就會滋生米蟲，故因此想設計一套方法可以有效驅除米蟲，減少米蟲的危害。一開始先觀察米蟲的特徵外型與行為，做一些簡單的紀錄，發現二種常見的米蟲－－米象與擬穀盜。以擬穀盜為實驗材料，利用各種可驅除其他害蟲的方法，如色光、氣味、溫度等，設計實驗去研究驅除米蟲的效果，發現冷藏法與使用柳丁皮、辣椒、大蒜的氣味驅除米蟲效果最為實際與有效。

\r \r \r \r \r \r \r \r \r \r 流場流速之量測在現今流體力學領域中是一項重要的技術，由流場流速之分佈可使我們瞭解流場的特性，從而印證各種理論所得結果之適切性。而由於目前量測流場流速之儀器設備皆相當昂貴，如須購置，對於學校而言是一項沉重之負擔，因此本研究想利用低功率雷射結合已經相當普遍之數位攝影機，產生數位影像後，再藉由影像處理軟體分析轉檔，最後由質點影像測速軟體分析，求得流場流速之分佈。由研究之結果發現【1】研究並拍攝水在攝氏90 \r 度時之流場流速平均值約為2.87×10-2m/s，大於鋁粉之沉降速度（1.64×10-3m/s）甚多，因此可視鋁粉為理想的可視化介質、【2】為避免變形計算誤差的產生，利用畫有刻度之投影片進行校正，可確保拍攝面與影像擷取裝置平行、【3】DV之每張影像間隔0.034 \r 秒，因此所得之流速可視為瞬間速度、【4】每兩張影像圖可分析出一張流速圖，由多張流速圖之動畫可清楚看出流速的變化、【5】熱水上方之主要流場為向外且產生渦流，而其餘之流場則較不規則。本研究結果雖在經濟性方面有其優點，但如能將雷射之功率提高、可視化介質反射率增大、攝影機之解析度提升，則完整性會更高。 \r \r \r \r

Plexiglas is a macromolecule (poly-methyl-methacrylate) obtained by polymerization of the Methyl Methacrylate. Cation exchanging resins have acidic groups such as COOH (carboxyl) and SO3H (sulfonic) which fix metallic cations dissolved in water releasing an equivalent of protons through the following reaction: 2 RCOOH + Me2+ (RCOO)2Me + 2 H+ Regeneration is made treating the exhausted resin with diluted hydrochloric acid (HCl) which moves the equilibrium to the left. The aim of our research is to re-use the discarded Plexiglas by transforming it into a cationic exchanging resin. Alkaline hydrolysis transforms the COOCH3 group into COO– group; the obtained group is then transformed into COOH group by means of a treatment with HCl. After the alkaline hydrolysis spectra of the solid show the characteristic band of the asymmetric stretching of the COO– (1610-1550) at 1567 (1st experiment) and at 1555 (2nd experiment). Instead after the acidic treatment the spectra of the solid show that this band has disappeared. On the contrary the characteristic band of the OH stretching of the COOH group (3300-2500) at 3228 (1st experiment) and at 3200 (2nd experiment) appears. The water hardness, due to Ca2+ and Mg2+ ions, is studied to verify the capability of the obtained resin to capture these cations. For this purpose, some mineral water is percolated through the micro-columns. There are three experimental evidences to validate the hypothesis: EDTA molecule (Ethylene Di-amino Tetra-Acetic acid, disodium salt) to estimate hardness is not required The pH of the percolated water through the column decreases from 8 of the mineral water without any treatment, to 6.3 after the treatment as expected The spectrum recorded in the visible range of the percolated mineral water through the column plus EBT (Eriochrome Black T) indicator is the same as the spectrum obtained using de-ionized water plus the same amount of EBT In conclusion, the study has provided evidence that it is possible to convert Plexiglas into cationic exchanging resin.

We all do it – walk along with a cup in hand, and carelessly spill it. While it’s usually more annoying than anything else, it happens to affect almost all of us, and little is done to minimise the likelihood of it occurring. So my aim was to explain the physics behind why we spill drinks when we walk, and to investigate how we can minimise the likelihood of this occurring. I broke this investigation into two distinct parts, explaining the system of the cup, and explaining the effect of walking. From initial observations, it was clear that the cup was a resonating system. Like any resonating system, the cup has a natural frequency. When the cup is oscillated – moved back and forth – at near this frequency, the size of the liquid oscillations is very large. This is because the acceleration is in phase with the motion of the liquid, so in each cycle maximum energy is input into the system. In my investigation I experimentally measured this natural frequency, and created a mathematical model to explain this frequency. It was also found that as the size of liquid oscillations in the cup increases, so does distortion of the fluid surface, possibly enabling spilling. To systematically analyse the effect of walking, I had subjects walk on a treadmill, so walking surface and speed were controlled. However, I also needed an accurate way of measuring the motion of a carried cup. Firstly, I tried to use video analysis; however I found this far too imprecise for measuring small changes in velocity of a cup. In the end I used a smartphone to record the acceleration of a carried cup, as acceleration is what causes the movement of liquid in a cup. This allowed surprisingly accurate measurements to be made, and allowed both the size and frequency of the acceleration to be recorded. In order to relate the system of the cup and the oscillation provided whilst walking I conducted a qualitative experiment into the effect of stride frequency on the likelihood of spilling. When stride frequency was very close to the natural frequency of the cup, spilling occurred almost instantly, while it did not occur if stride frequency was much higher or lower. In the end, my research showed that to minimise the likelihood of spilling your drink walk slowly, use a narrow cup, focus on walking smoothly, and fill the cup well below the rim. Despite this, some people happen to be much smoother cup carriers than others, likely due to their individual biomechanics. And, if you really don’t want to spill your drink, you can always use a lid.

市售光譜儀已搭配整合電腦分析軟體以及較小型之實驗觀測槽，確實可應用在高中課程上，例如定量未知濃度之溶液濃度以及充當秒錶反應之反應終止判斷依據，而如要測定難溶性鹽類之沉澱速率發現沉澱太快且難定義沉澱速率，但是此裝置仍可以測量沉降速率。而自製幾種光譜儀確實亦都可以拍出各光源之光譜圖，但自製目鏡光譜儀模組更可輕易拍出光譜圖，此實驗測量模組實際應用上只要搭配相機、固定光源以及電腦軟體如Tracker、Excel等，即可成功定量在不同環境下可見光光譜各波長之相對強度，進而應用於環境光譜之監測，讓我們可以盡量避免空氣中細懸浮微粒之危害。

自然科學第四單元“硫酸銅的沉澱”上課時，依照課本的順序要配製各種不同濃度的硫酸溶液，再進行實驗。當配製的時候，我們覺得各組配製溶液顏色有些不同，可能濃度不對，便去請問老師，怎樣檢驗硫酸銅溶液的濃度，每想到老師卻說這是個傷腦筋的問題，老師想要檢驗同學配製的濃度對不對，也是沒有辦法檢驗。我們覺得應該研究出一種檢驗的方怯才好，而且還可以把研究成果送給老師，以後老師就可以檢驗同學配製的濃度對不對，不必傷腦筋了。

由於學校是老舊的建築物，常可見到壁虎的蹤跡，所以本次實驗是在於了解我們生活中常見的壁虎。一般的參考資料對於牠們的習性描述不多，大都只做簡單的介紹，知道牠們是夜行性的動物，而且是攀爬高手。因此為了更進一步了解牠們的生活習性，針對牠們的視覺和聽覺做了研究。觀察知道，壁虎對顏色有特殊偏好，也會因為周遭環境顏色改變，而造成不同的情緒和生活習性的變化。而且壁虎對人類所能聽到範圍的聲音，沒有反應，推測牠們是聽力非常差或根本就是聾子。這次實驗相信對生活中的常客-壁虎有更進一步的了深入的認識，期待大家能用不同的角度來看待這些可愛的小動物。

我們定義「lap k三角形」如下： 如果用 k 個全等的小三角形以「邊併邊」的方式拼合成一個大三角形；而且大三角形仍和小三角形「相似」的話，則稱「大三角形」為「lap k三角形」。 本篇報告研究的重點，是想利用「圖形拼合」的性質，建立一個尋找「lap k 三角形」，並證明其個數的方法。利用此方法改良原本用「方程式」證明的方法，並得出下面的結論： 一、簡化「lap 2三角形」只有1種(即等腰直角三角形)的證明。 二、簡化「lap 3三角形」只有1種(即30° - 60° - 90°的直角三角形)的證明。 三、首次證明出「lap 4三角形」的三角形只有3種，但拼法有4種。說明如下： 1.任意三角形(如下圖一)。 2.任意直角三角形(如下圖二)。 3.內角為30° - 60° - 90°的直角三角形，有兩種拼法(如下圖三、圖四)。

最近同學間流行的開心炮，常造成校園內的垃圾問題，但也引起我們進一步去探討這兩種玩具的奧秘，及試著提出替代用品來解決學校的環境問題。首先，我們發現開心炮的內含物是由鹼性的白色粉末和一包酸性的透明液體所組成，藉由這二種物質的酸鹼中和交互作用來產生大量氣體，撐破袋子；其次，我們也發現小蘇打、檸檬酸和水混合後的自製替代物，比開心炮產生更好的效果；接著我們繼續探討影響自製替代物產生氣體之反應速度與反應威力的因素，我們發現水量、水溫、混合物比例都會影響氣體的反應速度與反應威力；最後，我們以自製替代物作為原料，製造許多有趣玩具，例如：自製開心炮、筆火箭與注射筒大砲等，並測試這些玩具的反應速度和反應威力。

本次科展的題目是鋁-空氣電池的探討研究製作，探討如何以生活中易取得之材料做出具有一般一次性電池之效能的鋁電池。在實驗的過程中延伸出探討孔隙度並附加孔隙度實驗，觀測卡片掀起之角度比較各種隔離膜材料孔隙度透氣性之大小及各種隔離膜在不同電解質溶液、濃度中的表現。

本研究主要是探討鯔人形魚蝨(Lernanthropus mugilii)於烏魚(Mugil cephalus)鰓上寄生的情形及蟲體的基本構造解析。 而主要研究目的為探討（一）鯔人形魚蝨蟲體的構造及其功能；（二）鯔人形魚蝨的營生方式；（三）鯔人形魚蝨的生長階段；（四）鯔人形魚蝨與寄主烏魚之間的相互關係；（五）鯔人形魚蝨的生存環境特徵。 本研究主要的結果為（一）鯔人形魚蝨成蟲雌(Female)比雄(Male)體型大；（二）鯔人形魚蝨以一對鋸子狀大顎鋸開鰓絲組織，再用口管吸食鰓絲上的黏液與血液；（三）此次研究發現鯔人形魚蝨四期：無節幼蟲(二期)、橈足幼蟲(一期)和成蟲(一期)，且其成長需脫殼；（四）鯔人形魚蝨對於寄主(烏魚)的專一性很強；（五）高鹽度(36‰)海水適合鯔人形魚蝨生存，淡水則會加速其死亡。