Science General Knowledge #3

Answer these random questions from the realm of science.
Quiz by Quizmaster
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Last updated: March 13, 2020
First submittedMay 15, 2016
Times taken32,890
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Question
Answer
What are the three major types of rock?
Igneous
Metamorphic
Sedimentary
What theory states that universe expanded from an extremely hot
dense state about 13.8 billion years ago?
Big Bang Theory
What "ology" is the study of weather?
Meteorology
What part of a human cell has its own non-human DNA?
Mitochondria
What prefix is the opposite of hypo?
Hyper
What is thought to be at the center of the Milky Way?
Supermassive
Black Hole
Through what process does the sun turn hydrogen into helium?
Nuclear Fusion
What unit of power is defined as one joule per second?
Watt
Where can one find a stalagmite?
in a Cave
What does a thermophile love?
High Temperatures
What is the term for the distance between the Earth and the Sun?
Astronomical Unit
What kingdom do yeasts and mushrooms belong to?
Fungi
What is measured on the Enhanced Fujita scale, with the highest rating being EF-5?
Tornadoes
What gas is the primary reason for human-caused global warming?
Carbon Dioxide
What gland, located at the base of the brain, produces human growth hormone?
Pituitary
What substance, added to salt, has largely eliminated cretinism in the developed world?
Iodine
What does a Geiger counter measure?
Ionizing Radiation
What gas is commonly known as "laughing gas"?
Nitrous Oxide
+2
Level 80
May 15, 2016
"Human mitochondrial DNA was the first significant part of the human genome to be sequenced." (Wikipedia) Why do you say it is non-human?
+9
Level 77
May 16, 2016
There is both human DNA and "foreign" DNA in mitochondria. The theory is that they are ancient microscopic creatures that evolved to have a symbiotic relationship with eukaryotic cells, and eventually became a part of them. But they still retain some of their own DNA as well as having human DNA in them.
+3
Level 71
Nov 22, 2019
This is nonsense. All of our DNA has evolved from other creatures. But as it's passed on by one human to another it is obviously human DNA.
+1
Level 67
May 29, 2020
@CardinalSin: But every cell in the human body has identical DNA (inherited from both parents), while mitochondria also have a separate set of DNA, which is inherited only from your mother.
+1
Level 37
May 31, 2020
And what? Your mother is not a human being?
+1
Level 74
May 15, 2016
Also accept radioactivity?
+1
Level ∞
May 16, 2016
Okay
+1
Level 41
Sep 21, 2016
Discovered by Madame Curie
+1
Level 55
Oct 16, 2020
It's in the air for you and me
+1
Level 82
May 16, 2016
How about "mitochondrium" for us non-English folks? Feels unfair to get "mitochondri" right and then not get it because failed on the last letter. Especially when you accept just "nitrous" for nitrous oxide. (Which should probably also be "nitros" in American, because "colour" becomes "color" and so on..)
+4
Level ∞
May 16, 2016
Mitochondrium would have worked. Also, o and ou have different sounds. Webster didn't just replace every ou with an o.
+3
Level 71
Feb 24, 2018
Mitochondrium is the singular of mitochondria, so it really should be accepted anyway.
+2
Level 75
May 29, 2020
I thought the singular was mitochondrion

https://en.wikipedia.org/wiki/Mitochondrion

+1
Level 59
Sep 18, 2016
So, cretin is not only an insult. Today I learned.
+1
Level 62
Nov 10, 2016
+1!
+3
Level 64
Sep 18, 2016
I don't understand why you just accept Nitrous, without the Oxide.

That's like asking who wrote Great Expectations and just accepting Charles! haha

+1
Level 44
Sep 18, 2016
I agree with that. Some people, like me, knew the whole name. Other may only know the first word, and would still get the point, whereas some who only know the second word wouldn't, despite both knowing only 50% of the answer. How is that fair?
+1
Level 21
Sep 22, 2016
Have you played any racing games?
+5
Level 81
Jul 26, 2018
"Nitrous oxide, commonly known as laughing gas or nitrous . . ." (emphasis mine)
+1
Level 58
Sep 18, 2016
I would say a Geiger counter measures decays/counts per second
+1
Level 70
Sep 20, 2016
Bully for you!
+1
Level 67
Mar 3, 2020
what type of decays would those be?
+1
Level 52
Sep 19, 2016
"Meteorology" doesn't work as a valid answer.
+2
Level 50
Sep 19, 2016
You cant type in Meteorology because Meteor solves the clue
+3
Level 54
Sep 21, 2016
I really hoped that "Nougat" worked for the Milky Way question. I was sorely disappointed.
+1
Level 31
Sep 22, 2016
Hahahaha :-)
+1
Level 72
Sep 22, 2016
"Epi" could also fit as the opposite of "hypo" - hypo meaning deep (hypodermic, hypocenter [of earthquakes]; epi mean surface - (epidermis, epicenter).
+1
Level 26
Sep 23, 2016
Accept NO for Nitrous Oxide
+10
Level 51
Sep 27, 2016
NO.
+3
Level 78
Nov 4, 2016
NO is something different. Nitrous oxide is N2O, which is accepted.
+2
Level 54
Feb 9, 2017
The hint should say "What is the power house of the cell.
+4
Level 71
Aug 1, 2017
Three types of rock. Classic, grunge, alternative?
+3
Level 81
Jul 26, 2018
You forgot art, experimental, garage, glam, hard, heartland, indie, occult, progressive, psychedelic, punk, roots, soft, blues, country, dance, electronic, folk, funk, industrial, Latin, noise, pop, raga, rap, reggae, samba, stoner, and sufi.
+1
Level 73
Feb 13, 2018
How about "warmth" for thermophilia?
+1
Level 77
Oct 22, 2019
Or heat?
+1
Level ∞
Mar 13, 2020
Heat would have worked. Warmth will not as well.
+1
Level 67
Jan 4, 2019
I basicly typed everything besides tornadoes, twice, (4 times if you count singular and plural...) storm, hurricane, typhoon, cycloon, (and another one I believe...) And yea I know, they arent all interchangable.
+1
Level 72
Jun 23, 2019
Minor change, but the Fujita question should either read “was once used to measure...” or “the Enhanced Fujita scale is used to measure...”, as the EF scale has replaced the F scale for some time now.
+1
Level ∞
Mar 13, 2020
Updated the question.
+2
Level 54
Jan 2, 2020
Put nitrogen oxide and nitric oxide 🙄
+1
Level 28
May 30, 2020
They are not the same. Nitric oxide is NO and nitrous oxide is N2O. They are part of nitrogen oxide (NOx).
+1
Level 45
Mar 3, 2020
Got Iodine
+2
Level 71
Mar 3, 2020
On the yeast and mushroom question, for a brief moment I was tempted to write Mushroom Kingdom...
+2
Level 52
Mar 29, 2020
Can you please accept SMBH for SuperMassive Black Hole?
+2
Level 51
May 29, 2020
I feel like hot springs or hydrothermal vents should work for thermophiles because that's really where you hear that term
+1
Level 69
May 29, 2020
Someone really loves his rocks, I've seen that question so many times on this site.
+1
Level 79
May 29, 2020
And yet I always forget one of them every time - usually a different one each time.
+1
Level 82
May 29, 2020
Maybe accept some type ins for the global warming clue? I tried greenhouse gas(ses), gas emissions, emissions, flourocarbons, oil, and a few others.
+1
Level 57
May 29, 2020
Accept Wind Speed for Tornadoes, Saprophytes for Fungi and Clorofloro Carbons for CO2
+1
Level ∞
May 29, 2020
No thanks.
+1
Level 56
May 29, 2020
I love that nos is accepted for nitrous oxide. Nice
+1
Level 26
May 30, 2020
Accept metamorphous for metamorphic. That's what I learned in school.
+1
Level 63
Jun 2, 2020
I tried "Nitric Oxide". sigh...
+1
Level 48
Sep 21, 2020
Can you add NO2 as an option for nitrous oxide?
+1
Level 28
Oct 30, 2020
I believe it is N2O, not NO2.
+1
Level 76
Oct 27, 2020
What unit of power is defined as one Joule per second?

Yes!