pure substances
what do you do to make a pure substances
refining techniques that remove impurities from natural materials
what is biology
Biology is the scientific study of life and living organisms, examining their structure, function, growth, origin, evolution, and distribution
what is chemistry
Chemistry is the central physical science that studies matter—its composition, structure, properties, and the changes it undergoes during chemical reactions
what is physics
Physics is the fundamental natural science dedicated to studying matter, energy, space, time, and their interactions
what is earth science
Earth science, or geoscience, is the study of planet Earth, encompassing its internal structure, surface processes, materials, atmosphere, oceans, and its place in the solar system