Eggshell science fair projects are great for exploring the science concept of permeability. Below you will find five options for your science experiments and projects. Each involves an egg, its shell and the concept of permeability. Build on these experiment ideas to develop winning science fair projects.
If you are interested in an eggshell science fair project, then consider starting with a basic project. Look at the make up of an egg and its shell. For example, you can develop a hypothesis and experiment that examines the chemical makeup of the egg’s shell.
The first option that you have for eggshell science fair projects is to see if the eggshell is water permeable. This means that water can be transported through the eggshell. If the shell is water permeable what does this tell you about eggs?
A variation on this project is to see if an eggshell is oil permeable. This means that oil based compounds can cross the eggshell. If the eggshell is not oil permeable does this put the chicken embryo at risk for poisoning? If it is what does this tell you about the protective nature of the eggshell? Also if the eggshell is not oil permeable can its design be used to prevent oil spills or to contain oil spills? Why or why not?
We have looked at the water and oil permeability of an eggshell, but how effective is this shell at keeping smells from being transferred to the inside of the egg. The set up of this experiment is a little more complex. First of all you will need to find a container that has a lid. Next you will hard boil and egg and place it in the container. Now place something stinky in the container like a crushed clove of garlic. Close the lid and let it sit overnight in the refrigerator. The next day remove the egg and remove the shell. Smell the egg white, does it smell like garlic?
Sound is another element that you will want to test for. Your hypothesis is how much sound does an eggshell keep out? For this experiment you will need to blow out the contents of the egg through a pin hole. Then drill a hole that is just big enough to fit a small microphone into. Stop up the hole with fun tack. Turn on your audio recorder and talk normally. Play back your recording and see how clear or muffled your recorder sounds. What does this tell you about the eggshell?