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TIMSS: Fourth grade students reaching the advanced international benchmark of science achievement (%) is the share of 4th grade students scoring at least 625 on the science assessment. Students reaching this benchmark can apply knowledge and understanding of scientific processes and relationships and show some knowledge of the process of scientific inquiry. Students communicate their understanding of characteristics and life processes of organisms, reproduction and development, ecosystems and organisms' interactions with the environment, and factors relating to human health. They demonstrate understanding of properties of light and relationships among physical properties of materials, apply and communicate their understanding of electricity and energy in practical contexts, and demonstrate an understanding of magnetic and gravitational forces and motion. Students communicate their understanding of the solar system and of Earth’s structure, physical characteristics, resources, processes, cycles, and history. They have a beginning ability to interpret results in the context of a simple experiment, reason and draw conclusions from descriptions and diagrams, and evaluate and support an argument. 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/