Science Experiments
Rubber Egg Bounce: The Great Shell Vanishing Act
The child will create a shell-less, bouncy 'rubber' egg by dissolving the calcium carbonate shell of a raw egg in vinegar.
Ready right now 2900 min Ages 5–10 years 1–3 players Indoor
PatienceObservation SkillsScientific Method (Hypothesis & Observation)Cause and EffectCareful Handling
Unlock this activity
Sign in to use one of your 3 free weekly unlocks.
Learning benefits
- 💡 Introduces basic chemistry concepts (acid-base reactions).
- 💡 Demonstrates how materials can change their physical properties.
- 💡 Encourages patience and careful long-term observation.
- 💡 Explores the concepts of osmosis and semipermeable membranes.
Safety notes
- ⚠️ Adult supervision is required for handling the raw egg and pouring vinegar.
- ⚠️ Raw eggs can contain salmonella; wash hands thoroughly after handling the egg before and after the experiment.
- ⚠️ The final rubber egg is not edible and can break if bounced from too high, creating a messy splat of raw egg.
Cleanup
- 🧹 Pour used vinegar down the drain and wash the Clear Glass Jar and Slotted Spoon with soap and water.
- 🧹 Safely dispose of the egg in the trash can if it breaks, as it is still raw inside.
- 🧹 Wipe down your work surface with an all-purpose cleaner and wash hands thoroughly.