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What is the difference between sound and noise? And is noise always a bad thing?

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Spending time outside has important physical and psychological benefits. It can even help you learn better!

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Plastic is in many of our everyday objects. What’s the problem with plastic for the environment? For animals? For humans?

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Pecking puts a lot of force on a woodpecker’s brain. But scientists think woodpecker bodies are designed to help protect them from pecking-related injuries.

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Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

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Everything and everyone ages. But scientists have made discoveries that could potentially one day be used to increase human lifespans.

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Learn about how geologists study landmasses of the past.

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Hydraulics power many of the large machines you see around you.

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