Eggs are rich in protein. When heat is applied, chemical bonds within the protein molecules are broken, forming new bonds between adjacent molecules. This creates a network of interconnected proteins, which causes the egg to go hard. Vinegar contains acetic acid (CH3COOH) that dissolves the calcium carbonate (CaCO3) shell but leaves behind the egg’s springy membrane.
![Changing States Science Experiment 1 Changing States Dyson DIY Science Project 2](https://abakcus.com/wp-content/uploads/2020/10/Changing-States-Dyson-DIY-Science-Project-2-1024x809.jpg.webp)
Make an egg fit into a bottle without breaking it.
Ingredients:
- An uncooked egg
- A pot of boiling water (with adult supervision)
- A glass of vinegar
- A wide-mouthed glass bottle
STEP 1
Submerge the egg in a glass of vinegar for two days: the shell will become rubbery.
STEP 2
Heat the bottle in hot water – remember to use gloves or a tea towel when handling it.
STEP 3
Rest the egg on the neck of the bottle.
STEP 4
As the air inside the bottle cools down, it will contract and suck the egg down.
![Changing States Science Experiment 2 Changing States Dyson DIY Science Project 3](https://abakcus.com/wp-content/uploads/2020/10/Changing-States-Dyson-DIY-Science-Project-3-827x1024.jpg.webp)
Designed by Charles, Design engineer at Dyson