Read and Understand, Science, Grades 4-6 presents stories that range from high-third grade to high-sixth grade in readability.Topics presented in Read and Understand, Science, Grades 4-6 include: Life Science - the common cold, tide pool life, yeast, diversity of animal eyes, conflict of conservation and tourism, cell structure and diversity, sickle-cell anemia. Physical Science - potential and kinetic energy, types of solar radiation, light reflection and refraction, chemical compounds, flight and rocketry, the periodic table of elements. Earth and Space Science - gravity, comets, types of rocks, total solar eclipse, tornadoes, tectonic plates and earthquakes, global warming. Science and Technology - the process of invention, alternative fuel sources, invention of the microwave, improving airplane wing design, global warming, telescopes, communications devices through the years.