Science quiz & tech questions
Physics, chemistry, space and the inventions that rebuilt everyday life.
Science is an extra category. The questions on this page are free to play; inside a duel it belongs to the paid part — six other categories stay free forever.
Which animal is not a mammal?
More Science questions
Guess first, then open.
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Which company is behind Fortnite?
Show answer Answer
- Epic Games
- Nintendo
- Sony
- Valve
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Which organ is mainly responsible for breaking down toxins?
Show answer Answer
- Liver
- Lung
- Spleen
- Pancreas
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The Institute for Theoretical Physics that Niels Bohr led from 1920 was based in which city?
Show answer Answer
- Copenhagen
- Berlin
- Vienna
- Stockholm
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The CRISPR/Cas9 gene-editing tool developed by Doudna and Charpentier is often nicknamed what, for its precision?
Show answer Answer
- Genetic scissors
- The gene hammer
- DNA glue
- The code key
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Which Indonesian volcano is associated with the major eruption of 1257 during the Middle Ages?
Show answer Answer
- Tambora
- Samalas
- Krakatoa
- Kelud
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Which gas is produced during digestion in cows' stomachs and is a powerful greenhouse gas?
Show answer Answer
- Oxygen
- Methane
- Helium
- Hydrogen
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What fundamental principle underlies the von Neumann architecture used in modern computers?
Show answer Answer
- Programs and data are stored in the same memory.
- The arithmetic unit and control unit are physically separate.
- Every instruction runs in parallel across many cores.
- Memory is used only for reading.
True or false?
Same material, different game — in a duel this one runs without a clock, but with an explanation after every reveal.
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Jupiter's Great Red Spot is a gigantic storm that has existed for several centuries.
Reveal Reveal
True.
The Great Red Spot is a huge anticyclonic storm in Jupiter's atmosphere. It has been observed continuously since at least 1830, and may even have existed since Cassini's records in the late 17th century.
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A byte consists of eight bits.
Reveal Reveal
True.
A byte is made up of exactly eight bits.
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Albert Einstein's famous formula is E = mc³.
Reveal Reveal
False.
Einstein's famous formula is E = mc².
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The first commercial mobile phone, Motorola's DynaTAC 8000X, weighed only about 250 grams in 1983.
Reveal Reveal
False.
The DynaTAC 8000X weighed around 790 grams and was a real bone-breaker — which is where the nickname "brick" for early mobile phones comes from.
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