Oxygen is necessary for almost all life on Earth. We breathe it in all day, every day. But what do you really know about this gas we actively inhale all the time? Take this quiz to find out!
What is the % of oxygen in the air we breathe?
21%
78%
56%
49%
True or False: Oxygen is the most abundant chemical element on Earth
It makes about 49% of the Earth's entire mass!
True
False
The ________ carries oxygen to our cells
Haemoglobin
Iron
Insulin
White blood cells
The brain uses _______ percent of the oxygen in the body
20
40
60
5
The chemical formula for oxygenated water is...
H2O2
HO2
HOHO2
HOH2
What is the chemical symbol for the Ozone gas?
O3
O2
O1
OO2
What percent of the human body is made of oxygen?
65%
21%
90%
15%
On the period table, you'll find Oxygen in number...
8
1
2
105
When organic material burns oxygen, _______ is released
CO2
CO
O3
H2O
True or False: While we need oxygen to live, it also damages our cells
That is why we take antioxidants, to elevate the damage oxygen does to us. We breathe it yet it also makes us older.
True
False
How many atoms of oxygen can be found in water?
One
Two
Three
None
Shall We Try Again?
It doesn't seem like you know that much about oxygen. We recommend you try again or have a look at your mistakes to learn a bit more about this gas we keep inhaling.
You're no stranger to the subject of elements. You probably know quite a bit about chemistry in general. The human body relies on this gas to survive, and it behooves us to know as much as we can about it. You still got a few questions wrong, but congrats on getting a good score!
Congratulations on knowing so much about oxygen! You must have a keen interest in all things chemical or biological, and why not, since it's not only a fascinating subject but one that is ever-relevant our lives, whatever we do. We commend you on your scientific knowledge!
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Shai K.
11/14/2021
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