Tag Archives: Minerals

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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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 …

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Why is the ocean salty?

Sea water contains all the natural elements that make up the minerals in the earth’s crust. The most common of the minerals found in the ocean is common table salt, which is mainly responsible for the salty taste of sea water.  In fact, the average gallon of seawater contains about a quarter of a pound …

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How are rocks made?

Rocks are found almost everywhere.  Very small rocks are called sand.  Rocks bigger than sand have other names, like pebbles, or stone.  Big rocks are called boulders.  In fact, almost all the earth – the mountains and the ground itself – is made of rock. Rocks are made of minerals.  A few are made of …

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