How does acid damage our teeth? Prove with an activity.

1.	How does acid damage our teeth? Prove with an activity.
Answer» Aim : To know the process of tooth decay. What you need : Marbles, dilute hydrochloric acid and test tube. What to do: Put a few small pieces of marble in dilute hydrochloric acid. Examine after awhile. What do you see : Acid reacts with marble and dissolves it. What do you learn : The enamel, which is a calcium compound, reacts with acid and gets destroyed in the same way a marble reacts with hydrochloric acid. When food remains stuck in teeth, bacteria feed on them. As a result, lactic acid is produced, which causes the destruction of enamel.

Answer»

Aim :

To know the process of tooth decay.

What you need :

Marbles, dilute hydrochloric acid and test tube.

What to do:

Put a few small pieces of marble in dilute hydrochloric acid. Examine after awhile. What do you see : Acid reacts with marble and dissolves it.

What do you learn :

The enamel, which is a calcium compound, reacts with acid and gets destroyed in the same way a marble reacts with hydrochloric acid.

When food remains stuck in teeth, bacteria feed on them. As a result, lactic acid is produced, which causes the destruction of enamel.

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