Making dyes dance for the winter holidays

The dyes seem to come to life!

Warn­ing! Only un­der adult su­per­vi­sion.

Equip­ment

  • milk;
  • dish soap;
  • plate;
  • cook­ie cut­ter;
  • food col­or­ing.

Step-by-step in­struc­tions

Set a cook­ie cut­ter on a plate and pour some milk onto the plate. Then, add food col­or­ing and a drop of dish soap. The dyes seem to come to life!

Sci­en­tif­ic de­scrip­tion

Soap low­ers milk’s sur­face ten­sion and spreads over its sur­face, mak­ing the milk it­self move. Thus, the dyes start to “dance”! This is such a cute ex­per­i­ment for a mer­ry win­ter break!

A sim­i­lar ex­per­i­ment is in­clud­ed in the “Col­or­ful chem­istry” set from the MEL Sci­ence sub­scrip­tion!

Try it