OSTP Science Grade 8 Practice Questions - Oklahoma School Testing Program - Science, Grade 8 Exam

Natural resources undergo chemical synthesis, where chemical reactions rearrange atoms to produce materials with properties distinct from the original raw materials. Synthetic materials are gathered directly from nature without undergoing any physical or chemical processing. Natural resources are physically mixed without breaking or forming any chemical bonds to create synthetic polymers. Synthetic materials are created out of empty space without using any natural matter or energy.