Wash your hands after doing the activity and cleaning up ... There are molecules in powdered drink mix that give it its color. These molecules absorb and reflect light in a special way that our eyes ...

As they grow older, their curiosity may pique, making them wonder, how exactly are colors mixed together? For fun, they may begin to experiment by mixing all the paint colors or just one or two ...

Recycling 3D filament is a great idea in theory, and we come across homemade filament extruders with some regularity, but ...