How to turn an egg into a bouncy ball

To celebrate Easter, we’ve come up with an eggcellent eggsperiment to help you ‘spring’ into the school holidays. All you need is 3-6 eggs, lots of vinegar, food colouring in any colour (optional) and 3-6 containers to turn an egg, into a bouncy egg.



  1. Place an egg in a container.
  2. Fill with vinegar so the egg is covered.
  3. Add 1-3 tsp of your chosen food colouring (optional).
  4. Leave for 1-3 days.
  5. Fill a bowl with warm water and transfer your first egg in to it – gently rub away the shell.
  6. Complete with all of the eggs.

The science behind the bounce

An egg becomes bouncy when the acid from the vinegar reacts with the shell. Over time, the shell dissolves, revealing a rubbery membrane which makes the egg bounce. The colour from the food colouring is transferred to the egg through a process called osmosis. We think it’s pretty cool! Want to find out more? Take a look at this BBC science guide.


Eggcellent games ideas

Now to have some fun! There’s so many ways to use your bouncy eggs to get active – but be careful – bounce them too hard and they’ll break. We’ve come up with three activities to get you started!


Egg and spoon
This is a classic sports day activity everyone knows how to play. Set a start line and a finish line, (you might want to set this up in the garden) and give each person, a bouncy egg and spoon.

The aim of the game is to balance the egg on the spoon and get to the end of the course and back without dropping it. Remember – it’s all about being slow, steady and keeping the egg balanced! If you drop it? Go back to the beginning and collect another bouncy egg.


Egg-roll obstacle course
This game will test co-ordination. Using house hold items, set up an obstacle course to roll the egg around. Create a simple route with gentle corners or, if you’re feeling creative, create bridges and tunnels to roll your eggs around.

The aim of this game is to roll the ball around the course as quickly as possible. Small children can use their hands and feet, but for a bigger challenge – older children cannot.

If you’re playing this inside, lay down a wipe clean tablecloth as there’s a chance one of your eggs could break.


Do you have an Easter game you love to play? Head to Facebook and let us know.