How liquids affect our teeth is a great topic for a science fair project. You have several ways to approach this topic.

Option #1 - Harmful Effects

The first option that you have is to look at the harmful effects that liquids can have on our teeth. For this type of experiment you will want to examine how acidic drinks degrade the quality of our teeth. You can also examine how certain liquids stain and discolor our teeth.

Option #2 - Helpful Effects

The second option that you have is to examine the positive effects that specific liquids can have on the teeth. For example, you can look at how liquid fluoride strengthens teeth or how sugar alcohols can actually help to remineralize your teeth. You will need to be creative when approaching this topic from this angle.

Option #3 - Common Liquids and Their Affects

Your third option is to develop a project around common liquids that teeth are exposed to. These liquids will include water, tea, coffee, soda pop, milk and juice. You will want to develop your project around how exposure to these liquids impacts the health and look of your teeth.

Option #4 - Protective Actions

The final angle that your science fair project can take will be to look at steps that you can take to protect your teeth from damaging liquids. In this type of science fair project you will need to start by examining how liquids impact your teeth and then figure out strategies for minimizing the damage caused by harmful liquids by maximizing the benefits generated by helpful liquids. This is a more advanced science fair project option, but one that could lead to a win at your local science fair.