Although scientists work in many different ways, all science relies on testing ideas by figuring out what expectations are generated by an idea and making observations to find out whether those expectations hold true.Science focuses exclusively on the natural world and does not deal with supernatural explanations.It is not simply a collection of facts rather it is a path to understanding. Science is a way of learning about what is in the natural world, how the natural world works, and how the natural world got to be the way it is.Science is complex and multi-faceted, but the most important characteristics of science are straightforward: Photo credits: Flickr user IFPRI, Flickr user NASA Johnson, and Flickr user Alaska Region U.S. Scientists are everywhere, unravelling the secrets of the universe. Millions of scientists all over the world are working to solve different parts of the puzzle of how the universe works, peering into its nooks and crannies and deploying their microscopes, telescopes, and other tools to unravel its secrets. Without science, the modern world would not be modern at all. And science can lead to technological advances, as well as helping us learn about enormously important and useful topics, such as our health, the environment, and natural hazards. Science helps to satisfy the natural curiosity with which we are all born: Why is the sky blue? How did the leopard get its spots? What is a solar eclipse? With science, we can answer such questions without resorting to magical explanations.

Photo credits: Frank Fox via Wikimedia, Flickr user NASA Goddard Space Flight Center, and Flickr user Nikki Pugh. From microbiology to microchips, it’s all science. This website will help you learn more about science as a process of learning about the natural world and access the parts of science that affect your life. Science relies on testing ideas with evidence gathered from the natural world. And science is different from many other ways of learning because of the way it is done. Just as importantly, science is also a reliable process by which we learn about all that stuff in the universe. But science is not just a collection of knowledge. Science is, in one sense, our knowledge of all that - all the stuff that is in the universe, including the tiniest subatomic particles in a single atom of the metal in your computer’s circuits, the nuclear reactions that formed the immense ball of gas that is our sun, and the complex chemical interactions and electrical fluctuations within your own body that allow you to read and understand these words. What do you see? Perhaps your hand on the mouse, a computer screen, papers, ballpoint pens, the family cat, the sun shining through the window …. To understand what science is, just look around you.

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