Grade 3 Science for the Second Semester covers the following topics: What is science Life Science Physical Science The World Around Us Reference Material Reference Material Section 1 Movie Magic How Claymation Movies Are Made The Age of Petroleum How Oil Is Found Section 2 Tracking Time The History of Timekeeping Time for Bed How Sleep Impacts Your Life Section 3 Straight from the Heart How the Heart Pumps Blood A Healthy Combination Symptoms of Iodine Deficiency Section 4 Trapped by the Snow All About Blizzards The Mysteries of Rapa Nui What happened to the Moai? Section 5 A Wetlands Invader Nutria in California Resources Under the Trees Protecting the Rainforest to Save the Medicine Section 6 The Roman Aqueducts Watering Rome A Moldy Discovery Penicillin by Accident