Schematic illustration of a design.

Egg Shape

Why Aren't Eggs Perfectly Round?

 

Materials

  • egg (hard-boiled or not)
  • round ball

Try This

  1. Place the egg and the ball on the floor.
  2. Roll each one. Which one rolls more easily?
Schematic illustration of to balls.

What's Going On?

When you rolled the ball, it moved easily across the floor. The egg rolled a little, but mostly it just wobbled. Which shape would more easily roll out of a bird's nest?

Schematic illustration of few eggs in the nest.