READING COMPREHENSION:

1. Define “surface tension”.

Surface tension is a measure of the strength of the water's surface film.


2.What evidence is there in the world around us that H20 has a high surface tension?

that things float on water, such as needleS or water insecets INSECTS


3.Do large bodies of water have an effect upon world climate? If so, how do they affect it?

There They are sources for water that falls. For , for example, snow and rain.


4.Explain why mists and fogs can form near lakes.

They can be formed near lakes because they often have different teperature temperatures. Fog or mist are formes formed when a lake cools the air around it.


5.How does putting salt on roads help drivers?

It lowers the freezing point of water so driver do not have to drive on icy rode roads.




6.What does the author mean by:
a.“great heat reservoirs”
b.“great heat exchangers”?



A big body of water is called a great heat reservoir because it can store a big amount of heat. They are called great heat exchangers because So by that they store heat to warm the earth and they also exchange the heat to make other warm.