It’s National Chemistry Week (NCW), and we here at Bytesize Science are celebrating a very special birthday – this week, the periodic table turns 140 years old! The periodic table lists all of the elements, which are like the ingredients that make up everything on Earth and in the universe around us.

To honor this special occasion, all week we’ll be learning about some of the most fascinating elements out there. But first, let’s start with atoms, the tiny building blocks that make up everything in the universe. Listen to our first NCW podcast to find out more!

Spanish version: