Tag Archives: Nature

Who invented the umbrella?

When it rains, we may put up an umbrella to help keep the water off.  But actually the umbrella was not invented as protection against rain. The first umbrellas were used as shades against the hot sun.  in fact, the umbrella gets its name from an old Latin word meaning “little shadow.” No one knows …

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Why do we perspire?

The sweat glands help keep you cool in the summer.  When we get very warm, little beads of water called sweat form on our skin.  Perspiration is a quick method of cooling off the body. You can test this by wetting your hands and waving them rapidly.  The water evaporates quickly and makes your hands …

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How are natural diamonds formed?

Diamonds are formed in dying volcanoes.  As the hot lava cools, great pressure and heat act on the carbon found in the lava and change the carbon into diamonds. You may know that a diamond is simply a crystal of common carbon, of which coal is largely formed. Diamonds were formed millions of years ago in …

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What does ‘dew point’ mean?

The dew point is the temperature at which moisture in the air begins to condense. Perhaps the air doesn’t seem damp at all.  It does, however, have many tiny, invisible bits of water moving about in it.  We call these tiny specks of moisture “water vapor.” Cold air cannot hold as much moisture at warm …

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Why is the season of autumn called fall?

Autumn is the season of the year that comes between summer and winter.  For those of us who live where there is a marked changed of season, we know it’s autumn when the leaves change color and the crisp air pinches our cheeks. Americans often call this season “fall” because it is the time of …

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What causes colored snow?

Did you know that snow is not always white?  Red, blue, yellow and even black snow is sometimes seen in many parts of the world. The snow is not really these colors!  If you live in a dusty place, bits of yellow dust in the air may stick to the falling snowflakes and make them …

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Where does a flower get its smell?

Most flowers, as we know, are the brightly colored blossoms of plants.  Many  flowers have very pleasing odors. The flower gets its smell from a fragrant oil that the petals produce. As the smell-producing oil evaporates into the air around the flower we can smell the sweet fragrance it gives off. While the sweet smell of rose …

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Where does a flower get its smell?

Most flowers, as we know, are the brightly colored blossoms of plants.  Many  flowers have very pleasing odors.  The flower gets its smell from a fragrant oil that the petals produce. As the smell-producing oil evaporates into the air around the flower we can smell the sweet fragrance it gives off.  While the sweet smell …

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How did the sunflower get its name?

The sunflower gets its name from its habit of facing the sun.  Sunflowers are tall plants.  They have yellow flowers with large brown centers which are full of seeds that are good to eat. The sunflower gets its name from its habit of facing the sun as it moves from east to west during the …

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How does a plant make its food?

Green plants make food in their leaves in a special food-making process called “photosynthesis.” Green plants make food in their leaves in a special food-making process called “photosynthesis” (pronounced foe toe SIN three sis), a word meaning “putting together with light.” A leaf manufactures food by taking carbon dioxide from the air and water from …

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