28+ Oxygen Facts That Everyone Should Know! (Free Printable)

Oxygen is the third most prevalent element of the cosmos after hydrogen and helium. It is vital for life on Earth, playing a key role in respiration and energy production in living organisms.

Additionally, oxygen forms a significant part of our planet’s crust, combining with other elements to create minerals and rocks.

Atomic number 8 and atomic weight 15.999 describe oxygen. It has a colorless gaseous appearance and a light blue hue when it is liquid or solid. Its mark is an O.

With these Oxygen Facts, let’s gain a deeper understanding of this vital substance that supports millions of species of life on Earth.

Fascinating Oxygen Facts

Joseph Priestley and Carl Wilhelm Scheele Discovered Oxygen Independently

Discovery Of Oxygen

While Joseph Priestley was credited for discovering oxygen in 1774 since Scheele’s work was not publicized, Joseph Pomeranian and German pharmaceutical scientist Scheele made his discovery independently.

However, Joseph Priestley and Carl Wilhelm Scheele both receive credit for discovering oxygen.

Joseph Priestley’s Continued Oxygen Experiments

The experiment is continued by Joseph Priestley, except this time, Priestley used a mouse in the jar that was first filled with the plant and then empty for the second experiment.

The second experiment ended with the mouse dying, proving that plants produce oxygen through a process known as photosynthesis.

Oxygen Makes up 21% of Earth’s Atmosphere

Oxygen Is 21% Of The Atmosphere On Earth

78% of the gases in Earth’s atmosphere are nitrogen, 21% are oxygen, 0.93% are argon, and 0.04% are carbon dioxide.

Your Breath Contains 20% Oxygen

An average person breathes in about 11,000 liters of air daily and uses about 550 liters of oxygen. 20% of the oxygen in the air you breathe and 15% of it out when you exhale.

A Person’s Oxygen Intake Turns to Carbon Dioxide at A Rate of 5%

5% of each breath a person takes is converted to carbon dioxide when exhaling.

Oxygen in Excess Can Be Dangerous

Humans require oxygen to survive, but as oxygen is an oxidant, too much of it can be harmful.

The body’s internal mechanisms convert a surplus of oxygen in the body into a reactive, negatively charged ion that can bind to iron and produce a hydroxyl radical that can harm the lipids in cell membranes.

Fortunately, the body always has antioxidants to fight oxidative stress daily.

Water, Plants, and Animals All Contain Oxygen

As a compound, oxygen is present in water, plants, animals, and a large portion of the earth’s solid crust. In addition to carbon, hydrogen, and other atoms, these molecules also contain oxygen.

Greek Words Oxys and Genes Are the Source of The English Word

The Greek word (o) Oxys and Genes or “Oxygenes,” which means “acid-forming” or “acid producer,” is where the word oxygen originates.

Oxygen Has a Melting Point of -218°c.

The typical boiling point of water is -189°C, while the typical melting point of oxygen is -218°C. The gas oxygen exists at room temperature.

Cyanobacteria Produced the First Oxygen

Cyanobacteria Produced The First Oxygen

The earliest oxygen on Earth was thought to be provided by cyanobacteria, which inhaled oxygen and exhaled carbon dioxide.

According to scientists, green algae and cyanobacteria produce more oxygen through photosynthesis than plants and trees, accounting for 70% of the oxygen in the atmosphere.

Both Low and High Temperatures Cause Oxygen to Respond

At low and high temperatures, oxygen transforms from monoclinic crystals to orange, red, black, and even a metallic form.

Fetal Oxygen Supply Through the Umbilical Cord

In the womb, the mother breathes for the fetus; the fetus does not. The umbilical cord transports the oxygen required by the developing fetus. The fetus won’t drown in the womb if the umbilical cord is unbroken.

The Oxygen Cycle Explained

The Oxygen Cycle

The “Oxygen Cycle” refers to the way that nature circulates oxygen. Aerobic organisms (living creatures that require oxygen) use the oxygen produced by photosynthesis and release carbon dioxide, which is also required for photosynthesis.

Fish Deplete Oxygen in Water

Because water has a higher oxygen concentration than the gills, fish can extract oxygen from ocean water using their gills. The blood vessels in the gills take in oxygen from the water as it passes through them.

Ozone Is an Allotrope of Oxygen

The Ozone layer, which shields us from the sun’s harmful UV radiation, is made of ozone, which is present in the higher reaches of the Earth’s atmosphere.

The Liver Uses the Most Oxygen

The Liver Uses The Most Oxygen

A 60 to 63 kg human body uses 250 ml of oxygen every minute, with the liver using 20.4% of that amount, the brain using 18.4%, and the heart using 11.6%.

Atoms of oxygen are a crucial component of DNA and proteins in the human body.

Compared to Cold Water, Warm Water Holds Less Oxygen

Because the water molecules in cold water are closer together, making it more difficult for oxygen molecules to escape, warm water stores less oxygen than cold water. Moreover, oxygen dissolves more slowly in warm water than in cold water.

Indeed, You Can Purchase Oxygen

People may now purchase their own portable oxygen. Most heavily polluted areas and cities, such as China, even have built-in home air/oxygen filters.

To lessen the negative effects of pollution on human health, most individuals still wear flu masks because they still find air/oxygen purifiers to be rather expensive.

Based on reports, clients have two options: “pure oxygen,” which contains 97% oxygen and a tiny number of other gases, or “fresh, clean air,” which contains 78 percent nitrogen, 21 percent oxygen, and a small number of other gases.

Illnesses Can Be Cured by Oxygen

Illnesses Can Be Cured By Oxygen

Hospitals employ oxygen to treat or cure patients’ illnesses in several ways. The pediatric incubator provides a secure environment for premature neonates and infants to grow.

Because too much oxygen can harm babies, doctors regulate the amount of oxygen in these places.

The Biggest Consumers of Oxygen Are Steel Businesses

Steel manufacturers use the most oxygen in the business since it is essential to the steel’s quality.

Workers eliminate unwanted steel compounds using pressurized oxygen during the forging process.

Scuba Divers Use Nitrox

Most scuba divers use nitrox (nitrogen and oxygen). Whereas expert divers utilize pure oxygen or nitrox, which has up to 80% oxygen, it includes up to 40% oxygen.

To prevent toxicity, scuba divers who use oxygen fractions higher than 21% of the air require special training. 

Less tiredness, longer bottom periods, and shorter surface intervals are benefits of utilizing nitrox for scuba divers.

Mountain Climbers Also Carry Oxygen

Mountain Climbers Carry Oxygen

Since the human body does not have enough time to adjust to the lower oxygen levels and reduced air pressure at higher altitudes, they carry oxygen.

Remember that our body responds to increasing breathing rates at higher altitudes by raising oxygen levels.

The Amount of Oxygen in Water Can Be Used to Gauge Its Health.

Scientists can examine the oxygen concentration of bodies of water to assess their health. The amount of oxygen in the area may be too high and harm the ecology if algae grow rapidly, where fertilizer runoff enters a body of water.

Despite this, life must exist in water to some extent because many species depend on it for survival, which then causes other species to depend on them as well.

The Oxygen on Mars Is MOXIE

NASA‘s Mars Oxygen Initiative, or MOXIE, uses a process known as solid oxide electrolysis to create oxygen from Mars’ atmosphere.

The main goal is to create molecular oxygen from Mars’ atmosphere, and scientists will track the process’ effectiveness. On Mars, there are also plans to build a nuclear reactor and cultivate trees.

On Mars, There Is only 0.174% Oxygen

Only 0.174% Oxygen On Mars

While there is oxygen on Mars, it is predominantly found in the form of carbon dioxide, nitrogen, and argon, with only 0.174% percent oxygen.

Ubiquity of Oxygen

In addition to our atmosphere, you can find it in rocks, dirt, and even the sun. 91.2% hydrogen, 8.7% helium, 0.043% carbon, and 0.078 oxygen make up the sun.

Earth Had a 30% Oxygen Content 300 Years Ago

The oxygen content of the air on Earth was 30% around 300 years ago. It currently stands at 20% and is unlikely to drop to 19%.

Humans have not adjusted to this new environment as other living things have. Everyone needs to start better, more environmentally friendly solutions to this expanding issue immediately.

Free Oxygen Facts Printables

Ready to explore the wonders of oxygen with your kids? With just one simple click, you can download and print these educational resources.

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Free Oxygen Facts Printables
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