Rock Eater: Will the Vinegar Destroy the Chalk?

 Purpose
The Purpose is to demonstrate the effect of acid on rock statues.

Prediction
I think the vinegar will leave a chunk of chalk in the jar.

Procedure

Materials

• chalk 
• vinegar
• glass

Procedure

• Fill the glass a quarter full with vinegar
• Add a piece of chalk to the glass
• Observe results

Results

• The first time only a little chalk turned into powder, so I did the experiment again. the second time the same thing happened.
• I tried inside chalk and vinegar out side and inside but that did not change it.
• I tried small pieces  but that did not change it
• In each experiment bubbles came up.

video of bubbles

What I Learned

• Experiments are not text book perfect
• Vinegar does not destroy rock
• A stronger acid might work

What else can this be applied to

Acid rain, another weak acid

chalk without vinigar

 

chalk with vinigar

small pieces                                                                               big piece

small piece 

outside

inside