All Puzzles articles

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Puzzle
January 2020 puzzles

2020-01-02T09:30:00Z

Download the puzzles from the January print issue of Chemistry World
Puzzle
December 2019 puzzles

2019-12-02T09:30:00Z

Download the puzzles from the December print issue of Chemistry World
Puzzle
On the spot: fiery solution

2019-11-14T09:40:00Z

How would you fight a solvent fire in your fumehood?
Puzzle
November 2019 puzzles

2019-11-01T09:33:00Z

Download the puzzles from the November print issue of Chemistry World
Puzzle
On the spot: pocketful of trouble

2019-10-03T09:30:00Z

What would you do if you found a mystery substance in your lab coat pocket?
Puzzle
October 2019 puzzles

2019-10-01T09:30:00Z

Download the puzzles from the October print issue of Chemistry World
Puzzle
On the spot: tyre fire

2019-09-04T09:30:00Z

What would you do if an entire tyre recycling centre was on fire?
Puzzle
September 2019 puzzles

2019-09-02T09:30:00Z

Download the puzzles from the September print issue of Chemistry World
Puzzle
On the spot: nitrous injection

2019-08-12T09:30:00Z

What would you do if a flask starts spewing brown gas?
Puzzle
August 2019 puzzles

2019-08-01T09:30:00Z

Download the puzzles from the August print issue of Chemistry World
Puzzle
On the spot: car coolant

2019-07-11T09:30:00Z

What would you do if you feel drowsy while transporting dry ice?
Puzzle
July 2019 puzzles

2019-07-01T09:30:00Z

Download the puzzles from the July print issue of Chemistry World
Puzzle
On the spot: silo rescue

2019-06-07T09:30:00Z

What could cause someone to pass out on top of a silo?
Sponsored
Build the best helicopter challenge

2019-06-06T15:45:00Z Sponsored by JMP

Can you figure out how to make the best paper helicopter?
Puzzle
June 2019 puzzles

2019-06-01T09:30:00Z

Download the puzzles from the June print issue of Chemistry World
Puzzle
On the spot: hot spill

2019-05-13T09:30:00Z

How would you help someone with tar burns?
Puzzle
May 2019 puzzles

2019-05-01T09:30:00Z

Download the puzzles from the May print issue of Chemistry World
Puzzle
On the spot: keyboard contamination

2019-04-15T09:30:00Z

What would you do if your hands are red and itchy after returning from the lab?
Puzzle
April 2019 puzzles

2019-04-01T14:30:00Z

Download the puzzles from the April print issue of Chemistry World
Puzzle
On the spot: corrosive collapse

2019-03-06T09:30:00Z

What would you do when a shelf in an acid cabinet collapses?