Science is a boon or benefit to us because it provides us with a systematic way of asking and answering questions about the observable physical and living things around us.Science provides us with a way to model possible outcomes by using the experimentation model with controlled variables. Science provides us with a way to determine if our idea about the way things are is valid or invalid based on whether or not the theories behind that idea can be proven true or false.
If a person comes up with a hypothesis regarding a particular set of events such as Sir Isaac Newton did when he dropped a lead ball and a wax ball from the top of the tower at Pisa. He then learned about the force of gravity which acts upon things dropped with equal force as these items both hit the earth at the same moment in time. Newton's original hypothesis was proven false.
Science provides humanity with a way to experiment with possible outcomes of a particular situation such as earthquakes and tsunamis by building small scale models and then testing the possible outcomes. By allowing scale model testing to occur, great human tragedies may be prevented by designing early alert systems.
Science can greatly benefit humanity through the discovery of disease agents, genetic mutations, and the effects of radiation on the life forms inhabiting the planet. Based upon these findings, scientists can make suggestions or develop medicines to help cure or curb disease causes in living things.
Science has been in the middle of huge religious and political controversies as long as people have made discoveries that ran counter to the currently held religious or political views. One must understand that science is not a "faith" nor is it a "political party".