Year 4 Antarctic animal life cycles Investigate the life cycles of Antarctic animals. Predators and prey Explore feeding relationships between Antarctic animals. Find out which animals share the same food source and compete for food. Natural resources and waste management Students research how human needs are met and natural resources used on the new Australian icebreaker. Breaking the ice Students investigate forces, described as a push or a pull, and find out how forces can change the shape or movement of an object.