High School Chemistry is a science subject that studies matter what substances are made of how they behave and how they change. In this course students learn about atoms, elements and the periodic table ,which explain the building blocks of everything around us.Chemistry also covers chemical reactions, acids and bases ,states of matter and mixtures such as solutions.Students practice solving problems ,writing simple chemical equations and doing laboratory experiments while following safety rules. Overall, high school chemistry helps students understand everyday phenomena like cooking ,cleaning and environmental issues and it builds important thinking skills for future science, health and technology studies.