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Puzzles

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Puzzle
On the spot: nitrous injection

12 August 2019

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

1 August 2019

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

11 July 2019

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

1 July 2019

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

7 June 2019

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

6 June 2019 Sponsored by JMP

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

1 June 2019

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

13 May 2019

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

1 May 2019

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

15 April 2019

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

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