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Groups of Two - Science

Guess the members of these scientific groups of two.
Quiz by Quizmaster
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Last updated: April 7, 2020
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First submittedFebruary 26, 2016
Times taken43,742
Average score52.5%
Rating4.33
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Group
Answer
First two elements in the
periodic table
Hydrogen
Helium
Discoverers of the
structure of DNA
James Watson
Francis Crick
Types of nuclear energy
Fission
Fusion
Types of reproduction
Asexual
Sexual
Egg-laying mammals
Platypus
Echidna
Types of trees
Deciduous
Evergreen
Species of camel
Bactrian
Dromedary
Biggest man-killing sharks
Great White Shark
Tiger Shark
Inventors of calculus
Isaac Newton
Gottfried Leibniz
Bones of the lower arm
Ulna
Radius
Group
Answer
Elements that are liquid
at room temperature
Bromine
Mercury
Elements discovered by the Curies
Radium
Polonium
Particles in an atomic nucleus
Neutrons
Protons
Types of twins
Identical
Fraternal
Einstein's theories of relativity
Special Relativity
General Relativity
Nobel Prizes won by Marie Curie
Chemistry
Physics
Moons of Mars
Phobos
Deimos
Countries to suffer 9.0 earthquakes
since 2000
Indonesia
Japan
Two most abundant elements
in the Earth's crust
Oxygen
Silicon
Closest living relatives to
humans (species)
Chimpanzee
Bonobo
76 Comments
+5
Level 65
Feb 27, 2016
Darn, I typed "Spacial Relativity"!
+4
Level 65
Feb 27, 2016
There are three types of twins: Fraternal, Identical, and Conjoined.
+8
Level 77
Feb 27, 2016
Can't conjoined be either kind? Fraternal or identical. And damn me for trying paternal and maternal and not figuring it out..
+15
Level 73
Mar 15, 2016
yes conjoined isn't a separate type of twins. it can actually only happen when the twins are identical (comming from a single fertilized egg) but don't completely separate from each other. So, technically conjoined twins are identical twins.
+2
Level 65
Mar 22, 2016
Ah, ok, something new!
+3
Level 71
Apr 7, 2020
I didn't know that fraternal is the normal English term. I tried two-egg, which is a Dutch term, I think that would be comprehensible to English speakers, maybe it should be accepted.
+2
Level 70
Apr 7, 2020
Great quiz. Could non-identical be accepted as well as fraternal?
+5
Level 78
Nov 1, 2016
I tried IRISH, that should count for something
+1
Level 83
Nov 28, 2017
Why not Scottish?
+7
Level 70
Jul 11, 2019
You would have won a potato but unfortunately the crop has failed again this year.
+4
Level 70
Jan 4, 2019
Yea I typed siamese
+10
Level 86
Feb 27, 2016
There are no "man-eating" sharks, sheesh.
+1
Level 85
Feb 28, 2016
Wha?
+13
Level 86
Feb 29, 2016
I say that sharks do not eat people. They sometimes kill someone by mistake, but will never hunt people on purpose like some big cats can do. I have to say that I find movies like Jaws disgusting, because they spread myths about sharks, and contribute to the fear and hate that they don't deserve. Just some stats: sharks killed about a hundred people between 1990 and 2005 while we kill several millions of them every year...
+6
Level 74
Feb 29, 2016
I agree with you in the sense that Sharks are really badly portrayed by the media and the arts. They are perfectly designed and amazing animals. But I wouldn't take the term "Man eating" as an animal that literally eats humans. More a colloquial term for an animal capable of killing a man with it's mouth?
+3
Level ∞
Mar 5, 2016
Changed to man-killing sharks. However, its possible that oceanic whitetips would hunt and eat humans.
+4
Level 70
Jun 17, 2016
I don't think any sharks actually hunt humans. I think they are going about their usual way of life and encounter humans in their natural territory and attack. It is really the humans that set out knowingly to enter the sharks natural habitat i.e. the sea.
+1
Level 58
Feb 9, 2017
Seems fair.
+1
Level 68
Apr 7, 2020
So, are you guys saying we need to ban surfing..., cos I’m good with that decision.
+4
Level 70
Apr 7, 2020
@malbaby we, humans, have a tendency to do that move into an animal territory then blame it for the inconvenience it might cause us.. raiding our trash, knawing our cables, looking for shelter, making noise, trying to have dinner, defendending their babies. Blocking our chimney or tv signal.

Basicly we blame they for wanting to eat, stay warm, procreate and defend themselves. Going about (as much as is still possibly with us taking their space) their daily bussiness.

+3
Level 40
Nov 1, 2020
I would agree with you, but you dissed Jaws and we can't be having that. :/
+1
Level 69
Dec 16, 2020
What about baby sharks ta-da-ta ta-da-ta?
+13
Level 84
Mar 23, 2016
Watson and Crick were certainly not discoverers of DNA. Rather, they identified its double-helical structure, but they and others were specifically working to come up with the structure of the already-known molecule, discovered by Friedrich Miescher.
+11
Level 49
Jun 17, 2016
yeap, certainly not true. Not to mention, giving sole credit of the discovery of the double helix structure would still be unfair considering the work of Chargaff, Franklin, and Wilkins (just to name a few) played a huge role in that understanding.
+3
Level 78
Jun 17, 2016
I agree that the description is not a good one. The DNA had been already discovered, they just found out how it looked.
+5
Level 30
Jun 18, 2016
I second this. Watson and Crick are the ones who get all the credit for a large team of people's work
+4
Level ∞
Jun 18, 2016
Although that's true about nearly every discovery and invention in modern times. The days of a lone genius toiling in isolation are long gone.
+1
Level 60
Mar 22, 2024
Speak for yourself. After decades lucubrating I am due to make an astonishing announcement about ... well quite what I'm not yet ready to say.
+4
Level ∞
Jun 18, 2016
But the clue has been fixed to say "structure" of DNA.
+2
Level 70
Jul 8, 2018
I agree, the great Isaac Newton once said: " If I have seen further it is by standing on the shoulders of giants."......
+2
Level 69
Sep 25, 2018
Isaac Newton would have seen a LOT further if he hadn't wasted so much of his time futzing around with alchemy, which he actually took seriously.
+7
Level 84
Jul 11, 2019
Structure is better but Franklin deserves credit, and Wilkins less so. It was her photos that revealed the structure. Three of them got the Nobel prize - but Franklin had died by then.
+7
Level 74
Jul 8, 2018
It definitely should not be a "group of two" question. Maurice Wilkins was awarded a nobel prize for his contribution to the discovery, and he and Rosalind Franklin are widely thought to have deduced the structure first, and published it in the same year as Crick and Watson.
+7
Level 84
Oct 11, 2020
Not to mention that Watson used Franklin's work without her knowledge and made some incredibly degrading and sexist remarks about her.
+1
Level 75
Jun 17, 2016
As this is a science quiz, shouldn't the types of twins be monozygotic and dizygotic?
+5
Level ∞
Jun 18, 2016
Those would have worked if you typed them. :)
+2
Level 70
Jan 4, 2019
For a long while I couldnt think of the answer ( and wasnt sure I would have heard of the englsh answer) In my language it is "one-egged' "two-egged" somehow maternal came up tried it, didnt do anything, later identical popped up. But never got back to paternal, because I thought maternal just rondomly came in to my mind and had no connection to anything.
+1
Level 41
Jun 19, 2016
"Science has failed our world, science has failed our mother Earth", System of a Down anybody?
+9
Level ∞
Jun 20, 2016
That song lyric makes me cringe.
+1
Level 82
Apr 5, 2018
Ditto.
+1
Level 69
Sep 25, 2018
Amen, and every year my cringes start looking more like sobs of despair.
+1
Level 57
Jul 7, 2018
should perhaps have allowed pigmy chimpanzee for bonobo
+12
Level 77
Jul 7, 2018
I keep putting in "Rosalind Franklin" as one of the discoverers of the structure of DNA, but it's not working for some reason....
+1
Level 70
Jul 8, 2018
I think the question should be "Who received Nobel Prizes for Physiology and Medicine for their work on DNA"....... Rosalind Franklin did great work before them both. see ..... https://www.rosalindfranklinsociety.org/about/rosalind-franklin
+4
Level 74
Jul 8, 2018
Even that question should include Maurice Wilkins. More realistically, the question should be removed because it's inaccurate to call it a group of two.
+4
Level 76
Jul 11, 2019
maybe it should have been 'two scientists who got all the glory for the discovery of the structure of DNA'
+1
Level 68
Jul 11, 2019
Yes, that.
+2
Level 76
Feb 23, 2019
Types of reproduction: virginal - regular ... or perhaps accidental - planned ... Go and tell.
+8
Level 70
Jul 11, 2019
Wth??
+2
Level 65
Nov 7, 2022
There are two very scientific terms - it was your choice to go lewd
+3
Level 76
Jul 11, 2019
For the two types of tree, 'broadleaf' and coniferous' or 'monocotyledon' and 'dicotyledon' would be better answers than 'deciduous' and 'evergreen', as they are more fundamental biological divisions.
+1
Level 70
Jul 11, 2019
This must have been tough if I walked away with 4 out 5 points. I'm normally very frustrated by these science quizzes.
+1
Level 37
Jul 11, 2019
I usually am below average in most tough Jetpunk quizzes.. did surprisingly well here.
+2
Level 66
Jul 11, 2019
Ugh, not very charitable on spelling.
+1
Level 62
Jul 14, 2019
Well I thought our closest relatives were orang utans- you learn something new everyday
+1
Level 78
Jul 15, 2019
For the moons of Mars I always try Kang and Kodos for some reason.
+2
Level 30
Mar 10, 2020
The only thing that Watson and Crick discovered were Rosalind Franklin's notes.
+1
Level 77
Nov 8, 2022
so true!!
+1
Level 54
Apr 7, 2020
echidnas are also called spiny anteaters
+3
Level 71
Apr 7, 2020
Imagine my disappointment as a Maths graduate at not being credited for the answer "Leibnitz". Robbed!
+1
Level ∞
Apr 7, 2020
Leibnitz with a T will work now.
+1
Level 66
Nov 10, 2022
I suppose the reverse is also true, but "maths" with an s on the end sounds very wrong to American ears. We spell and say it as "math" without an s.
+4
Level 69
Dec 16, 2020
There are actually three species of egg-laying mammals: the echidna, the platypus, and the Easter bunny.
+1
Level 67
Feb 7, 2022
There were 4 discoverers of DNA but the main one was Rosalind Franklin. Crick and Watson basically stole her ideas and got all the credit.
+1
Level 82
Nov 7, 2022
Hmm. Ulna and... radix? radii? radia? radum?

*sees the answer*

Arrrrgh!

+3
Level 72
Nov 7, 2022
Homozygous and Heterozygous should work too for the kind of twins.
+2
Level 56
Nov 7, 2022
Newton obviously had a much more effective PR operation than Leibniz - about three times better, in fact
+2
Level 79
Nov 7, 2022
His biscuits weren't as good though
+1
Level 67
Nov 7, 2022
That was a great quiz, learned a lot, ty
+3
Level 63
Nov 7, 2022
Dang, Leibnitz at the bottom. For real.
+1
Level 68
Nov 7, 2022
Please accept Radii as an answer for Radius - bones of the arm
+1
Level 62
Nov 7, 2022
So many issues here. the Watson and Crick question should just be gone, really not right in a 'groups of two' quiz, for all the reasons several others have highlighted.

'Evergreen' for the trees is just wrong. It should be 'coniferous' (if dicotyledon and monocotyledon are the two categories intended) as there are several conifers (monocots) that are not evergreen, Larches, certain Cypresses for example.

+1
Level 67
Nov 8, 2022
for the reproduction couldn't viviparous and oviparous be accepted?
+1
Level 70
Nov 8, 2022
I'd be willing to bet the majority of people know Marie Curie. Maybe fewer know she's Polish, but I still suspect many know that too. Despite being a French citizen, she remained quite proud of her roots, and even made sure her children spoke Polish. Polonium is thus named after her birth country.
+1
Level 24
Nov 9, 2022
Cesium is also a liquid at room temp
+1
Level 56
Jan 17, 2024
Poor Leibniz