Have you noticed that cyclists lean forward during a race? They do this to move through the air more
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Some parts of the ocean can glow at night because of tiny organisms that produce light. A rare event
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A time capsule is a container filled with special objects and memories that is sealed and hidden, us
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Color is a perception of the wavelengths of light that bounce off an object and reach our eye. Objec
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Humidity is the amount of water vapor in the air, and it can affect many things around us. After a h
[864호]
Earthquakes are measured using different kinds of math. First, seismometers record seismic waves. Sc
[863호]
Learning a new language gives your brain a great workout. As you learn new words, sounds, and gramma
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Compostable materials are made to return to the earth rather than becoming long-lasting trash. For e
[861호]
Blue-footed boobies are known for their unusual feet. But do you know how they become so blue? The c
[860호]
Anesthesia is a medical treatment that uses carefully measured drugs to help people during surgery.
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