Earth materials provide many of the resources needed by humans. People have always had questions about their world. Science is one way of answering questions and explaining the natural world. People have always had problems and invented tools and techniques to solve them. Scientists and engineers often work in teams with different individuals doing different things that contribute to the results.
Tools help scientists make better observations, measurements, and equipment for investigations.
They help scientists see, measure, and do things that they could not otherwise see, measure, and do . Science in Personal and Social Perspectives Personal health Safety and security are basic needs of humans. Safety involves freedom from danger, risk, or injury. Types of resources Resources are things we get from the living and nonliving environment to meet the needs and wants of a population. Some resources are basic materials and some are produced from basic resources.