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Did you know that your wireless earbuds contain a tiny radio transmitter?

We don’t generate power directly from volcanoes, but their presence is a sign that there are good geothermal resources underground that can be tapped.

You can feel wet when you can see water and when you can’t see water. You can also feel dry even when there’s a lot of water vapor in the air – like during a fire.

Energy drinks and coffee both contain lots of caffeine. That’s a problem for teens, especially those who take prescription stimulants.

You might have already felt what it would be like inside a cloud made of condensed water vapor.

Since caffeine is in so many different foods and drinks, it’s easy for kids – or grownups – to get more than they should without realizing it.

Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s going on in the atmosphere.

Belonging to a group can make you feel safe and supported. But there can be downsides, too.

Prisons and jails have a long history, but they weren’t always used for the same kinds of punishment.

The Earth has had at least five major ice ages, and humans showed up in time for the most recent one. In fact, we’re still in it.