Proving that sometimes the simplest toys are the best, Clackers consisted of two hard acrylic balls (initially, they were tempered glass!) on a string with a ring in the middle; kids spent hours ...
Ahh one just edged it. One of the skills of scientific method is to improve the experiment you have designed to make it more accurate. So I will have to carry this out again and again and record ...
The Pokémon Company and Build-A-Bear are back with another Pokémon plush, available in stores starting today!