5.1 The Cat Family (Life Science)
5.2 Inside Sea Creatures (Life Science)
5.3 Staying Healthy (Life Science)
5.4 Food and Farming (Life Science)
5.5 Build an Aquarium (Life Science)
5.6 Changing World (Life Science)
5.7 Underwater Explorers (Earth Science)
5.8 Drought (Earth Science)
5.9 Mountains[r]