How Do Scallops Swim?
How Do Scallops Swim? One could say that scallops jet-propel themselves through the water. Like oysters and clams, the shells of scallops have two tightly fitting...
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How Do Fish Live in a Frozen Pond?
How Do Fish Live in a Frozen Pond? Anyone who has fished through a hole in the ice knows that many fish are active in the winter. Usually, what we call a frozen pond is...
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Why Does Boiling Water Bubble?
Why Does Boiling Water Bubble? When you boil water in a teakettle, you heat it to the point where it changes from a liquid to an invisible water gas called...
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Why Does an Octopus Squirt Ink into the Water?
Why Does an Octopus Squirt Ink into the Water? An octopus squirts its inky liquid into the water to escape enemies. The “ink” is a thick brown fluid...
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What Is a Sponge?
A sponge is an extremely simple kind of water animal with a soft, elastic skeleton. It has no head, mouth, or brain. Sponges hatch from eggs. The baby sponge attaches...
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