What Is an Iceberg?
What Is an Iceberg? If a glacier reaches the sea, its forward edge breaks off, forming huge floating blocks of ice called icebergs. Icebergs are pieces of ice formed on...
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Why Is Ice Slippery?
It is hard to walk on ice because its smooth, frozen surface causes you to slip. Ice is slippery not only because it is smooth but also because it melts under the...
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Why Does an Ice Cube Float?
Why Does an Ice Cube Float? Ice cube floats because it is lighter than water. When water freezes, it increases its volume (expands) by about one-tenth. When 10 quarts...
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How Does Frost Harm Plants?
How Does Frost Harm Plants? On cold winter mornings, feathery designs of ice may form on windowpanes and blades of grass. These icy crystals are frost. Frost kills...
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What Are Clouds Made Of?
Clouds are made up of very tiny drops of water or tiny crystals of ice that float in the air. Clouds form when warm air, containing moisture evaporated from the...
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