Discipline: Physical Science
Age Range: 8+ (adult supervision required)
Estimated Time: 10 minutes for activity; 60 minutes of drying time for the eggs
What You Need: a clean bowl; needle or thumbtack; toothpick or straightened paperclip; clear tape or masking tape; raw eggs; a towel or paper towels; soap and water
Eggs are one of nature’s most ingenious inventions! Chicken eggshells are tough yet delicate, and surprisingly, can stay whole even if you pierce them with a needle! If you’ve ever wished your decorated eggs aren’t cracked open and turned into deviled eggs, here’s a fun way to make them last longer.
Instructions:
Take out eggs from the refrigerator and let them sit until they are room temperature.
Place a small piece of tape on the top (the pointy thick end) of the egg and the bottom (the fatter end) of the egg.
Using a needle, poke a hole in the top of the egg through the tape. Hold the egg over the bowl to catch any of the liquid that drips out; do the same with the bottom of the egg. Wiggle the needle around in the egg to make the hole in the bottom bigger than the hole on the top.
Take the paperclip or toothpick and stick it in the hole in the bottom of the egg. Gently swirl the end of the paperclip inside the egg, being careful not to damage the hole. You can also do this with a needle.
Flip the egg over and blow air into the top of the egg, letting the contents of the egg drip into the bowl from the bottom hole. Rinse the eggshell with warm soapy water. Be sure to clean the inside and outside of the egg. Leave your egg pointy side-up to drip dry.
Once the egg is completely dry, you can start decorating!
Eggs are one of nature’s most ingenious inventions! Chicken eggshells are tough yet delicate, and surprisingly, can stay whole even if you pierce them with a needle! If you’ve ever wished your decorated eggs aren’t cracked open and turned into deviled eggs, here’s a fun way to make them last longer.
Helpful Hints
Egg shells can be very delicate. Putting a small amount of tape in the areas you intend on poking the holes in will lessen the chances of the egg cracking. When blowing into the top of the egg, if you notice none of the liquid is coming out the bottom of the egg, stop and try to break up the yolk inside the egg. If you blow too hard into the egg while nothing is coming out the pressure may make the egg explode.
Reflection Questions
Why did you swirl the paperclip inside the egg?
What do you think would happen if you had not broken down the egg yolk before attempting to blow it out of the shell?