VI. Read the passage then use the words given to complete each of the gaps. (1pt)
source quickly from
wind
energy
electricity
Wind is moving air. We can use the energy in wind to do work. Early Egyptians used the wind to
sail ships on the Nile River. People still use (1)
to move them in sailboats. In the Netherlands,
people used windmills to grind wheat. The Pilgrims used windmills to grind corn, to pump water,
and to run sawmills. Today, we use wind to make (2)
The energy in wind comes (3)
the sun. When the sun shines, it heats the Earth. Some parts
of the Earth get hotter than others. An area where land and water meets is a good example. Land
usually absorbs and releases energy more (4)
than water. The air over the land gets hotter
than the air over the water. The warm air rises and cooler air rushes in to take its place. The moving
air is wind.
As long as the sun shines, there will be winds on the Earth. We will never run out of wind (5)
It is a renewable energy source. It is also free, since no one can own the sun or the air.