Emily McConnell (3DF) has written the blog below, detailing a science experiment Year 3 conducted to see how best to mummify pieces of cucumber. Our year group were inspired by the practices of Ancient Egypt, where they used natron salt in the mummification process to preserve bodies for the afterlife.
Mummifying A Cucumber
When we were doing our Egyptian topic, we wanted to know what it felt like to mummify something. So, we thought of mummifying a cucumber! To do this we had to make the nearest mixture to natron salt by mixing salt and baking powder.
We had 9 plastic cups, one had a cucumber in but nothing else the other 8 cups went from 1 to 8 teaspoons of salt and baking powder.
We waited a week to see what happened and we found that none of them were mummified, however, the nearest to being mummified was the one with no mixture!
So, the next day we thought about why none of them were mummified. We decided that to make it more like the real process we would leave our next batch for 40 days. In our next batch we had 1 cup with just salt and a cucumber; one with just baking powder and a cucumber; one with salt, baking powder and a cucumber and 1 with salt, baking powder and a cucumber in a cup with holes in the bottom.
Forty days later on the 7th May, we had a look to see if they were mummified. When we looked, all of them looked a bit mummified but the cucumber that had been completely mummified was the one that had been with baking powder and salt in a cup with holes in the bottom. The two least mummified were the one with just salt (it had gone all soggy) and the one with just baking powder – because you needed the salt to stop it going mouldy.
~ by Emily McConnell (3DF) ~