Articles on Oxygen

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Breathing pure oxygen would be like fireworks exploding in your body. And that’s not always a good thing. Shutterstock

Curious Kids: what happens if you breathe pure oxygen?

You might think the more oxygen you breathe in the better. But too much oxygen can make you sick.
Her deep breath has to get to the baby. electravk/Moment via Getty Images

How does a baby ‘breathe’ while inside its mom?

A fetus needs oxygen long before its lungs work and it’s exposed to the air. Some ingenious biochemistry explains how the mother’s blood delivers it.
Alfred Nobel made his fortune through the invention of dynamite. Paramonov Alexander/Shutterstock.com

Discovery of how cells sense oxygen levels earns Nobel Prize

Oxygen is vital for life, so much so that cells can sense when there isn’t enough and adapt almost instantly. So how do they do it? The winners of the 2019 Nobel Prize for Physiology figured it out.
The more fuel there is for the fire to burn, the bigger the fire. Leaves, trees and grass fuel the fire. Flickr/bertknot

Curious Kids: how do bushfires start?

Bushfires require three key ingredients to ignite: heat, fuel and oxygen.
A John Deere tractor makes its way through floodwaters in Fargo, North Dakota. AP Photo/Carolyn Kaster

The dirt on soil loss from the Midwest floods

Recent extreme rains and weather in the Midwest are causing a multitude of problems in the topsoil that much of the nation’s food supply relies on.
Westy48/Flickr.

Curious Kids: what is fire?

Put simply, it’s the outcome of a chemical reaction, which humans learned how to make some 400,000 years ago.

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