Includes bibliography.

"People desire to understand the things that are happening around them. Why did this things happen? How does that work? These are just few a few of the questions we pose that demonstrate our innate curiosity. We have always been curious about the world around us. Learning science fuels and nurtures that curiosity, and it satisfies our need to understand the "whys". Science provides answers and solutions to our deepest concerns such as how atoms form different types of compounds, how organisms in the environment are interconnected, how force and energy are used and harnesses, and how celestial objects provide clues to the origins of our planet and of the universe. Science helps us turn our innate curiosity into knowledge. This knowledge can be a great resource. With this knowledge, we become empowered to discover, invent, and find solutions to our problems. As you go though every page of Practical Science, may you be equipped with the skills that will help you adapt to this new century of scientific discoveries."