Communicate a problem, design, and solution. Science is one way of answering questions and explaining the natural world. People have always had problems and invented tools and techniques to solve problems. Scientists and engineers often work in teams with different individuals contributing to the results. Tools help scientists make better observations.
Some objects occur in nature while others have been designed by people to solve human problems.
Objects can be categorized into two groups, natural and designed. Resources are things we get from the living and nonliving environment to meet the needs and wants of a population. Some resources include basic materials, such as air, water, and soil. The supply of many resources is limited. If used, resources can be extended through recycling and decreased use.