Science A-Z provides books and passages at multiple levels of text complexity to meet the needs of all students and smoothly integrate science and literacy. Science instructional units are distributed over four scientific domains: Life, Earth and Space, Physical, and Process Science, based on the grade range at which the topic is taught in most states. Each unit has resources at three levels of text complexity: low •, mid ••, and high •••. These comprehensive resources can be used as a core science program or to supplement existing science curriculum.
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​Types of Resources on Science A-Z
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​Teacher Resources on Science A-Z