air

彰化縣溪州鄉溪州國小

Balloons expand when you fill them with air. 

當你幫氣球打氣時，氣球會變大。

Once the balloons are filled with air, you can use them to make all sorts of interesting designs. 

一旦氣球充滿空氣，你能做成不同有趣的造型。

The students learn about air in class.

學生在課堂上學習有關空氣的知識。

They use a toy to demonstrate the movement of air.

他們用玩具來示範空氣的運動。

彰化縣花壇鄉花壇國中

The teacher uses a bucket of water and a pipe to do an air pressure experiment. 

這位老師使用一桶水和一根管子來作氣壓的實驗。

The experiment shows air pressure by pushing the pipe down to force the water out. 

在這個實驗中，藉由將管子下壓，把水抽出來，顯示氣壓的原理。

彰化縣彰化市中山國小

The students do experiments on air pressure in class.

學生在課堂上做氣壓實驗。

They use syringes to increase and decrease air pressure to open and close a mechanical claw. 他們使用注射器來增加和減少氣壓來打開和關閉機械爪。