Chemistry Sets Used to be Dangerous

A popular Christmas gift for kids years ago used to be a chemistry set. But those sets could be dangerous! They contained poisonous cyanide to dissolve gold, blowtorches to make glass test tubes, radioactive uranium to practice measuring radiation, and carcinogenic asbestos to dust for fingerprints. Now some chemistry sets don’t even contain chemicals!

Archive

Merry Christmas!

Today is Christmas, a festival celebrated by billions of people to commemorate the birth of Jesus Christ. We don’t know the date Jesus was actually born, but Christmas has been December 25th since the year 336. It is marked with gift giving and Santa Claus, Christmas trees and lights, church services, songs and gatherings.

Archive

1 375 376 377 378 379 393