Do science fair projects really "teach" science?

In some ways, science fair projects do help teach science. When you do science fair projects, you do hands-on projects that apply what you learn from the scientific method. You make a hypothesis when you ask a question that you are not sure about and make an "educated guess" about what is going to happen at the end of the project. You experiment, or test the hypothesis when you collect data and you also learn what the cause and effect was. As you do your experiment, you also observe what is happening. You analyze what has happened with the independent variables and the dependent variables. Finally, you learn to evaluate and prove your hypothesis through your data.