J for Jelly Egg
‘Chemicals’ could be a term that children might be familiar with. Maybe we told them not to eat tooth paste because it is a chemical and not to chew nail polish because it is a chemical. Until they get introduced to the periodic table to get a fair idea of the chemical elements, we can have them explore a few safe chemicals at home. How a chemical reacts with and changes the nature of different substances can be an exciting science activity for kids. This jelly egg shall be one such amusing science experiment for them.
Tips to introduce
- Children observe and infer many phenomena naturally as a part of their everyday lives, perhaps without associating with science terms. An adult with whom children interact about their observations plays a pivotal role in inculcating science awareness in them. If that’s you, know that you have the power to inspire science learning in children.
- You can begin with simple chemical reactions of our everyday lives like fermentation that happens in the dosa batter, welling up of tears while cutting onions, washing hands with soap, etc.
- Eggs are quite a common kitchen item at home. And children are likely to be familiar with the shape, look, and feel of an egg. They know that eggs feel a little hard when touched and that they can easily break and pour out the contents when hit. While there are a variety of daily life examples to introduce the science of chemicals, the jelly egg experiment can help them see an exciting physical change that happens because of a chemical reaction.
- When you are at the experiment venue, explain to them what you are going to do without revealing what you are likely to observe.
- Set it up and let them observe what happens!
Things you’ll need
How do you do it?
1. Gently place an egg in a jar.
2. Pour vinegar to cover the entire egg. Close the jar and leave it for 24 to 48 hours.
3. Open the jar. Abracadabra! The egg is no more the hard, white egg, but a squishy, bouncy ball – jelly egg! (expect a riot of acid smell and some mess if the egg breaks open).
The Science behind
The hard egg shell is made of a chemical called calcium. Vinegar is made of a chemical called acetic acid. The chemical reaction between the two chemicals dissolves the outer hard shell, leaving the inside intact and viewable through a transparent, slimy layer.
Share your experience
Did you try? Did it work? Did you play with your jelly egg? Leave a word in the comment section. I would love to hear!
Here’s the full list of DIY Science Experiments in this series:
A for Air – Does Air has Weight?
B for Buoyancy – Can Egg float on Salt Water?
C for Capillary action – Rainbow Walking
D for Density – 3 Layer Density Experiment
E for Earth & Moon – Why does the Moon change its shape?: Phases of the Moon
F for Fire – Does Fire need Oxygen to Burn?
G for Gravity – Defying Gravity
H for Hot Vs Cold – DIY Water Temperature Experiment for Kids
I for Inside the Eye – How to see your Eye Blood Vessels?!
J for Jelly Egg – How to make a bouncy egg?