This puzzle shows many of the elements used to make transistors. The finished puzzle is a section of the periodic table, so the numbers on each tile are their atomic numbers - that means they ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

Designed to engage children with a unique periodic table decoding challenge, this worksheet encourages them to solve puzzles using atomic numbers to spell out fall-themed words. Whether you’re a ...