科學實驗課第三講：密度,壓力與溫度的遊戲
上週我們做了幾個關於密度的實驗，今天我們繼續會講講壓力，溫度！！
太平洋和大西洋交匯處的奇觀！！！
首先想問問大家，地球有多少個海洋呢？
我們來看看實際情況
Small experiments on density, temperature and pressure that we can do at home
在家裡我們可以做的關於密度，溫度，壓力的小實驗
Experiment1
實驗1
Let's take a look at the difference when injecting color into cold water and warm water! ! !
我們來看看把顏色注入冷水和溫水時的區別！！！
Below are the teacher’s test results
下面是老師的測試結果
Experiment2
實驗2
After the transparent plastic bag filled with water is sealed, use a sharpened pencil (please pay attention to safety, and do not let the sharpened pencil pass through both sides of the water bag.
把裝滿水的透明膠袋密封好後，用削尖的鉛筆（請大家注意安全，不要讓削尖的鉛筆穿過水袋的兩邊。
Experiment3
實驗3
Put two plastic water bottles with balloons in the cold water and hot water dishes respectively. Let's see what changes will happen to the two balloons?
把分別套有氣球的兩個塑料水瓶分別放在冷水與熱水盤裡，我們看看兩個氣球會有什麼變化？
實驗挑戰作業
Challenge 1 Water that flows by itself
挑戰1 會自己流動的水
1.putting five cups in a row,
2. pour water at the same temperature in the first, third, and fifth cups respectively。
3. then let the water in the three cups with water dye different colors.
4. Finally, use a good quality paper towel to roll into a thick paper rope and place it according to the picture below, and see what happens after an hour! !
我們來看看把五個杯子放成一排，分別在第一，第三還有第五個杯子倒入相同溫度的水，然後分別讓三個有水的杯子裡的水染上不同的顏色，最後，用質量好的紙巾捲成粗紙繩按照下面的圖來擺放，看看一小時後發生什麼變化！！！
Challenge 2 Balloon Fountain
挑戰2 氣球噴泉
1. Fill the balloon with water
2. Use tape to paste tic-tac-toe on the balloon (see picture)
3. Use a bamboo stick to make a hole in the part where there is no tape in the middle of the Tic Tac Toe.
1。把氣球裝滿水
2。用膠帶在氣球上貼出一個井字形（看圖示）
3。用竹籤在井字中間沒有膠帶的部分扎出一個洞。
At the same time, everyone is welcome to do the experiments that the teacher did in class! 同時也歡迎大家做課堂上老師做過的實驗！
