The Nature
of Everything.

From the particles we cannot see to the galaxies we cannot reach — how much do you really understand about the laws that hold existence together?

✦ Expert10 Across · 10 DownPhysics · Chemistry · Biology · Cosmos

THE EXPERIMENTTwenty clues. Infinite curiosity.

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The Evidence

20 Research Questions

Across

2.One of two atoms of the same element sharing atomic number but differing in neutron number. (7)
6.The scientific term for a cell’s planned, orderly self-destruction rather than death caused by injury. (9)
9.A tiny, almost massless “ghost particle” with no electric charge that can travel through Earth almost undisturbed. (8)
10.The cell’s tiny protein-making factory, which reads instructions carried by messenger RNA. (8)
11.The geological balance that lets Earth’s crust “float” on the mantle, rising when the weight of an ice sheet is removed. (8)
12.Astronomers use this term when light from a distant galaxy is stretched towards longer, redder wavelengths. (8)
13.In physics, a measure of how spread out energy is in a system, often loosely described as “disorder”. (7)
16.A protective cap at the end of a chromosome that usually gets shorter as a cell divides repeatedly. (8)
18.Agent that provides a lower-activation-energy reaction pathway and is regenerated in the overall process. (8)
19.The “handedness” of a molecule: its mirror image cannot be placed exactly on top of the original. (9)

Down

1.A particle such as an electron or quark, belonging to the group named after physicist Enrico Fermi. (7)
3.The scientist whose name is attached to the effect that makes a siren sound higher as it approaches and lower as it moves away. (7)
4.A class of particles that includes photons and the Higgs particle; unlike electrons, many can occupy the same quantum state. (5)
5.A building block of DNA and RNA, made from a sugar, phosphate and nitrogen-containing base. (10)
6.One of several different versions of a gene that may influence a particular trait. (6)
7.An extraordinarily bright object at the centre of some distant galaxies, fuelled by matter falling towards a supermassive black hole. (6)
8.The six-letter name for the gene-editing technology often compared to molecular scissors. (6)
14.Apparent change in a nearby star’s position against distant stars as the observing point changes. (8)
15.Interval in which the number of undecayed radioactive nuclei falls to 50% of its initial value (two words). (8)
17.The movement of water through a selectively permeable membrane, often from a more dilute solution to a more concentrated one. (7)

The Nature Of Everything Crossword

The Natureof Everything.

The Nature
of Everything.