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TIMSS: Fourth grade students reaching the high international benchmark of science achievement (%) is the share of 4th grade students scoring at least 550 on the science assessment. Students reaching this benchmark can apply their knowledge and understanding of the sciences to explain phenomena in everyday and abstract contexts. Students demonstrate some understanding of plant and animal structure, life processes, life cycles, and reproduction. They also demonstrate some understanding of ecosystems and organisms' interactions with their environment, including understanding of human responses to outside conditions and activities. Students demonstrate understanding of some properties of matter, electricity and energy, and magnetic and gravitational forces and motion. They show some knowledge of the solar system, and of Earth’s physical characteristics, processes, and resources. Students demonstrate elementary knowledge and skills related to scientific inquiry. They compare, contrast, and make simple inferences, and provide brief descriptive responses combining knowledge of science concepts with information from both everyday and abstract contexts. Data reflects country performance in the stated year according to TIMSS reports, but may not be comparable across years or countries. Consult the TIMSS website for more detailed information: http://timss.bc.edu/