Monthly Archives: July, 2010

How is vinegar made?

Vinegar is made by exposing fermented fruit juice to the air to form a sour acid that gives the liquid its “vinegar” taste. Vinegar is a sour liquid that is popular as a seasoner for salads and other foods.  It is also used to preserve, or “pickle,” meals and vegetables. Vinegar gets its name from …

Rate this:

Continue reading

What is the Longest River in the World?

The Nile River in Africa is probably the longest river in the world. The longest river in the world is probably the Nile River found in Africa.  It flows 4,187 miles from central Africa to the Mediterranean Sea. If the Nile were placed in the United States.  It would reach almost from the West Coast …

Rate this:

Continue reading

What are the earth’s magnetic poles?

The earth is like a huge magnet with its own North and South magnetic poles, which are located several hundred miles from the true North and South Poles. Many people think that a magnetic compass needle points, to the North Pole. Well, a compass obviously does point in a northerly direction, but not to the …

Rate this:

Continue reading

What is the rock of gibraltar?

The rock of Gibraltar is a big “rock” fortress that guards the gateway to the Mediterranean. The Rock of Gibraltar is a high, rocky point of land on the southern coast of Spain. “The Rock,” as it is commonly called, is only about 8 miles long and less than a mile wide.  It guards the …

Rate this:

Continue reading

What are crystals?

Crystals are rocks and minerals in which the atoms or molecules were arranged in very regular patterns as the crystals were formed. Perhaps you think of a crystal as a beautiful gem.  You are partly right.  Diamonds and rubies are crystals. But no all crystals are gems.  Each grain of salt and sugar that you …

Rate this:

Continue reading

What is a venus-flytrap?

Venus-flytraps are small insect-eating plants.  When an insect touches the trigger hairs in the plant’s leaf, it snaps shut like a trap. You have probably seen so many plants spoiled by insects, but have you ever seen a plant that “eats” insects? One of the strange insect-eating plants is the Venus’s-flytrap.  This small plant is …

Rate this:

Continue reading

How are the great lakes formed?

The basins of the great lakes of North America were probably scooped out thousands of years ago by ice age glaciers. Nowhere else in the world is there a group of fresh water lakes so large as the Great Lakes of North America. The Great Lakes were probably scooped out many thousands of years ago …

Rate this:

Continue reading

What is a tidal wave?

A tidal wave is a large ocean wave, usually caused by an earthquake or violent storm at sea.  Sometimes great, destructive waves sweep in from the sea like a huge tide.  Most people call these “tidal wave,” but they have nothing to do with true waves. Scientist have a special name for tidal waves.  They …

Rate this:

Continue reading

What is taxidermy?

Taxidermy is the art of preserving animals and showing them as they looked when alive. If you have ever been to a natural history museum, then you may have seen life-size figures of tigers, antelopes and other wild animals. We think of them as “stuffed animals” and this is just what taxidermy involves.  It is …

Rate this:

Continue reading

How do lemon grow?

A lemon tree produces lemons almost continuously the year round in the right climate. A lemon tree is a small evergreen with spreading branches that are covered with short, sharp spines.  The lemon tree blooms and produces lemons almost continuously in the right climate.  A lemons tree may produce as many as 3,000 lemons each …

Rate this:

Continue reading