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Science General Knowledge #3

Answer these random questions from the realm of science.
Quiz by Quizmaster
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First submittedMay 15, 2016
Last updatedMay 16, 2016
Times taken18,218
Rating4.40
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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 Fujita scale, with the highest rating being F-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
+1
level 76
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?
+3
level 76
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.
+1
level 72
May 15, 2016
Also accept radioactivity?
+1
level ∞
May 16, 2016
Okay
+1
level 43
Sep 21, 2016
Discovered by Madame Curie
+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..)
+1
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.
+2
level 66
Feb 24, 2018
Mitochondrium is the singular of mitochondria, so it really should be accepted anyway.
+1
level 59
Sep 18, 2016
So, cretin is not only an insult. Today I learned.
+1
level 63
Nov 10, 2016
+1!
+1
level 63
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 45
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?
+2
level 79
Jul 26, 2018
"Nitrous oxide, commonly known as laughing gas or nitrous . . ." (emphasis mine)
+1
level 59
Sep 18, 2016
I would say a Geiger counter measures decays/counts per second
+1
level 67
Sep 20, 2016
Bully for you!
+1
level 49
Sep 19, 2016
"Meteorology" doesn't work as a valid answer.
+2
level 51
Sep 19, 2016
You cant type in Meteorology because Meteor solves the clue
+2
level 55
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 69
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
+4
level 49
Sep 27, 2016
NO.
+2
level 75
Nov 4, 2016
NO is something different. Nitrous oxide is N2O, which is accepted.
+1
level 54
Feb 9, 2017
The hint should say "What is the power house of the cell.
+1
level 23
Mar 20, 2017
But then it would be obvious
+2
level 70
Aug 1, 2017
Three types of rock. Classic, grunge, alternative?
+1
level 79
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 61
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 65
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.