Materials

1. Dishwasher or soap
2. Milk (Whole milk works best)
3. Dish
4. Food coloring
5. You can include cotton swabs

Hypothesis

If I put a drop of dishwasher or soap into a bowl of milk and food coloring, then the soap will reduce the surface tension of the milk and cause the milk and the food coloring to stream away from the drop.

Question

Does soap affect the surface tension of milk?