Today we will be doing an experiment where we are dissolving calcium with acid. We are using Christian Kids Explore Chemistry by Bright Ideas Press to study elementary-level chemistry. This is one of the fun hands-on activities in the book.
You will need a raw egg, vinegar, and a mason jar. Place the raw egg into the mason jar. Now pour vinegar over the egg until it is completely covered. You might want to put a little extra vinegar over it because the vinegar will evaporate somewhat. Now leave the jar alone for 24 hours.
If you look at the egg as it sits in the water, you will notice small bubbles surrounding the egg. This is the acid from the vinegar eating away at the calcium carbonate that makes up the shell of the egg.
After 24 hours, grab the egg gently in your hand. How does it feel? My daughter says it felt soft and squishy. The shell had been eaten away completely by the acid in the vinegar!
You will want to watch the video to see whether the egg in this condition will bounce or splat!Tweet