Some of the world's finest roads make use of bodies of water. They are called canals. Canals are man made waterways. They are usually straight and narrow. But they are filled with water. They connect rivers and lakes, oceans and lakes, rivers and rivers, and oceans and oceans so that boats and ships can go from one to the other.

Most canals are used for transportation. Barges, boats, and ships carry goods over canals. Some are used to irrigate land or to carry sewage from large cities. Canals also reduce the cost of shipping goods and offer travel short cuts.

Canals even go over hills and mountains. But you know that water can't flow up a hill; so how can the water and boats in a canal go up a hill?

Something called a lock is used. It is a giant tank. The tank is big enough to hold a long boat. The boat floats into the tank, and the doors behind it are closed to lock the boat in there. Then more water is let into the tank. When the tank is full of water, the tank door in front of the boat is opened and the boat floats out. The boat floats higher and higher as the water rises. It floats either out into a higher part of the canal or into another tank or lock, which will lift it still higher.

To go down the hill on the other side, the boat enters a lock that is full of water. As the water is let out of the lock, the boat will float lower and lower. So locks make it possible for boats or ships to move from one water level to another.

The Three Sheiks and Queen of Arabia

Maura, who liked to be thought of as the most beautiful and powerful queen of Arabia, had many suitors. One by one she discarded them, until her list was reduced to just three sheiks, all equally young and handsome, rich and strong. It was very hard to decide who would be the best of them.

One evening, Maura disguised herself and went to the camp of the three sheiks, as they were about to have dinner, and asked them for something to eat.

The first gave her some leftover food; the second gave her some unappetizing camel's tail; the third sheik, who was called Hakim, offered her some of the most tender and tasty meat. After dinner, the disguised queen left the sheiks' camp.

The following day the queen invited the three sheiks to dinner at her palace. She ordered her servants to give each one exactly what they had given her the evening before.

Hakim, who received a plate of delicious meat, refused to eat it if the other two could not share it with him, and this act finally convinced Queen Maura that he was the man for her.

"Without question, Hakim is the most generous of you," she announced her choice to the sheiks." So it is Hakim I will marry."

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