Author Biography: DanielPoulson

This is a quiz on those wonderful elements, but I do not mean earth, fire, air and water, but europium, fluorine, argon, hydrogen and oxygen. I hope that you will enjoy this quiz and that it will make you go mental, about elements!

This is a quiz about the NFPA (National Fire Protection Association) 704 Hazard Identification System. NOTE: ALL quotations are from: "http://chemlabs.uoregon.edu/Safety/NFPA.html", these have been used for clarity and to minimise confusion.

A quiz about the binary number system, which is used extensively in computing. All questions are written using binary numbers, except for question two.

Can you help the Peterson family with their task of opening a safe containing brilliant platinum jewellery?

This is a quiz about the hexadecimal number system, which is used by computer programmers and in computers.