Habitat Hypotheses Activity Prescribed Learning Outcomes: Science Grades Kindergarten to 1 describes the effects of weather on living things Grades 2 to 3 demonstrate a knowledge of what animals need to survive Grades 4 to 5 relate the structure and behaviour of organisms to their survival in local environments discuss how changes in an organism's habitat can affect the survival of individual organisms and entire species describe human impacts on the Earth's water resources describe the consequences of extreme weather conditions Top of page.