Third grade children continue learning how to conduct investigations.  Students practice posing questions, making hypotheses, ·and testing predictions.  They use the information they collect to make inferences and draw conclusions. They get experience using a wide variety of equipment-thermometers, rulers, simple balances, etc. They are expected to gather, measure, and record data with greater precision. For example, they may be instructed to measure things to the nearest gram or degree Celsius. Children get more experience working on teams and sharing findings with others. They also practice reaching their own conclusions when working in groups. Third graders study topics such as: Introduction to Classification of Animals how scientists classify animals (e.g., cold-blooded or warm-blooded, vertebrates or invertebrates) basic characteristics of fish, amphibians, reptiles, birds, and mammals Science The Human Body the muscular system (e.g., involuntary and voluntary muscles) the skeletal system (e.g., skeleton, spinal column, rib cage) the nervous system (e.g., brain, spinal cord, nerves) how the eye works (e.g., cornea, iris, pupil) how the ear works (e.g., ear canal, eardrum) Light and Optics how light travels (e.g., in straight lines at amazingly high speed) difference between transparent and opaque objects mirrors, lenses, and their uses (e.g., in telescopes, cameras) prisms...

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