the best science on the web about
oxygen

Oxygen Is Killing You
Image: iStockphoto.com/DianDimov

Oxygen Is Killing You

You digest food. You make a fire. Your bike rusts. In each case, oxygen is breaking another substance apart.

When ancient bacteria began putting oxygen in the air, they set the stage for today’s animals, which can’t survive without it. But they also set us up for trouble. Oxygen’s nasty. It messes up our cells, and may be one reason we get old and die.

SciShow
Loading...
Burn Baby Burn!

Burn Baby Burn!

Discover the similarity between a raging fire and your cells getting energy from food. In both cases, oxygen tears fuel molecules apart, producing carbon dioxide, water, and lots of energy. More...

Video
Australian Broadcasting Corporation
Oxygen and Photosynthesis

Oxygen and Photosynthesis

Plants produce oxygen during photosynthesis, and now you can demonstrate it yourself. Gather a few materials and let the project begin. More...

Activity
Science Fair Projects
Periodic Videos: Oxygen

Periodic Videos: Oxygen

"Lots of chemists are very scared when they see the blue of liquid oxygen," says a chemist in this video. Then he shows why. More...

Video
University of Nottingham
Why Do Plants Need Oxygen?

Why Do Plants Need Oxygen?

You've heard it a million times: Plants take in carbon dioxide and give off oxygen. But it turns out that plants need oxygen, too. What gives? More...

Article
UC Santa Barbara
Chlorine Bleach

Chlorine Bleach

How does bleach get rid of stains? Not by removing the molecules that stains are made of, as you will see. More...

Article
Argonne National Laboratory
Loading...
How Much Oxygen Does a Person Consume in a Day?

How Much Oxygen Does a Person Consume in a Day?

Flattened out, the surface area of an average person’s lungs would cover a tennis court. So you can bet we’re big oxygen consumers. More...

Video
BrainStuff
It’s Elemental: The Element Oxygen

It’s Elemental: The Element Oxygen

Oxygen makes up 21% of the Earth’s air, but nearly half of its crust. Get the basics about oxygen here, including the story of its discovery. More...

Article
Jefferson Lab
Redox Reactions

Redox Reactions

Oxidation has 2 definitions. It’s “the gaining of bonds to oxygen.” It’s also “the loss of electrons.” So you can have oxidation without oxygen. Get unconfused here. More...

Article
Wiley
Rocket Fuel Without Air

Rocket Fuel Without Air

You find some great information about rocketry here, as 5 scientists chime in to help a student who asks, "How does rocket fuel burn without air?" More...

Article
Argonne National Laboratory
Time-Lapse Car Rusting

Time-Lapse Car Rusting

Watch what oxygen and moisture do to a car abandoned for a century. As this video makes clear, any piece of iron or steel will eventually turn completely into rust. More...

Video
History Channel

Latest Comments

You Also Might Like

  1. acids, bases & the pH scale

    acids, bases & the pH scale

  2. fabric softeners

    fabric softeners

  3. chili peppers

    chili peppers

  4. neon

    neon

  5. silicone

    silicone