5.1 Classifying Organisms (Life Science)
5.2 Cells to Systems (Life Science)
5.3 Human Body Systems (Life Science)
5.4 Plants (Life Science)
5.5 Interactions in Ecosystems (Life Science)
5.6 Changes in Ecosystems (Life Science)
5.7 Water on Earth (Earth Science)
5.8 Weather Patterns (Earth Science)[r]