题目内容：

假如你是Greenhill School的交换生，你参与了该校的一个科学实验。请根据以下实验过程补全英文实验报告。

Water in Motion

What You Need:  •clear glass tray •warm water    •large cup with 200 ml of hot water •large cup with 200 ml of cold water •red and blue liqpid food coloring

Directions : ① Fill the tray with warm water. ② Set the tray on top of the two cups, with the hot cup under one end and the cold cup under the other. ③ Add four drops of red food coloring to the water above the hot cup and four drops of blue food coloring to the water above the cold cup. Add both colors at the same time. Results : Color Water Observations blue cold sinks and stays together; moves slowly toward hot side in a band of color; spreads out over the hot cup red hot spreads quickly across the top; covers whole top in 1～2 minutes,then starts to sink

 

 

Hello, everybody. Here is our report on the experiment “1.”. First, we put the glass tray full of warm water on top of two cups with 200 ml of2.water and cold water. Then, we add red and blue liquid food colorings into the water above the hot and cold cups. at the same time.

After careful observations, we got the3.. The blue food liquid coloring moves downward first and then to the hot side while the 4.one spreads quickly and covers whole top in a short time and goes down; the blue liquid food coloring spreads more5.than the red one. Thank you for listening.