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The book includes four thematic control works, prescribed by the standard programme in chemistry for 7th grade, in 2 variants and 2 summative control works in 6 variants. Thematic control works are composed of test tasks of closed form with short answers: to select the correct answer from several given ones, to establish the correct answer (logical pairs), to establish the correct sequence. The final control works contain open-ended tasks with both short and open-ended answers.