Gather all materials
Gather all the required materials in one single place so that you do not need to fetch them every now and then during the experiment.
Two separate glasses
With the help of a pen, pencil or marker, write “Water” on the first glass and “Vinegar” on the second glass to avoid any confusion.
Pouring Water & Vinegar
Now pour about a cup of water in the glass labeled “Water” and in the same way, pour a cup of vinegar in the glass labeled “Vinegar”.
Testing with Chalk
Immerse a piece of chalk in both the glasses such that half part of the chalk is inside the glass and half is outside. Use support to position the chalks upright and place them at a safe place.
Comparing two Chalks
When you take the chalks out of both liquids to observe, it will be noticed that the chalk immersed in Vinegar has a changed condition as compared to the one in water. To be exact, it will be corroded and the one immersed in water will remain as it was.