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The world around us is composed entirely of matter, yet understanding its fundamental structure and behavior can be challenging without a strong foundation. This course provides a clear, written guide to the building blocks of physical science, explaining complex concepts in an accessible way. Upon completing this course, you will have a comprehensive understanding of the physical states of matter, the energy dynamics involved in their transitions, and the microscopic forces that dictate macroscopic behavior. You will be able to analyze and explain why substances exist as solids, liquids, or gases under different conditions. What you'll learn: * Understand the core particle nature of matter, its definition, and its characteristic properties. * Analyze the distinct properties of solids, liquids, and gases based on their particle arrangement and intermolecular forces. * Master the processes of phase transition, including melting, boiling, sublimation, and deposition. * Apply the concepts of latent heat and pressure to predict and explain changes in the state of matter. * Practice essential scientific measurements, including working with density and converting between Kelvin and Celsius temperature scales. The course begins by defining matter and its microscopic structure, progresses through a detailed analysis of the three main states, and concludes by exploring the influence of temperature and pressure on state changes. This foundational knowledge is reinforced through conceptual explanations and practical practice exercises. This course is designed for absolute beginners interested in foundational physics and chemistry. No prior scientific knowledge or prerequisites are needed to start learning. Develop a fundamental understanding of the physical world around you.