◦ Life Cycles: Concepts covered include the essential nature of reproduction for organisms, the orderly changes in plant life cycles, and how organisms have structures and functions for survival. It specifically mentions the patterned changes in flowering plants.
◦ Growth and Change: This section discusses that living things need energy to grow and develop, how animals obtain energy from food, and that different animals grow and develop at varying rates. It also introduces metamorphosis as a complete change in development for some animals.
◦ Animal Groups: Topics explore how being part of a group helps animals obtain food (e.g., lions hunting together), defend themselves (e.g., elephant herds), and cope with habitat changes (e.g., bird migration).
◦ Offspring: This subbranch focuses on physical and behavioral adaptations for survival, how inherited information leads to variation in organisms, and how some inherited traits appear as an animal grows. It notes that many traits are inherited from parents.
◦ Fossils: This area explains that fossils provide evidence about past organisms, lists types of fossils (molds, casts, trace fossils), and describes Earth's rock layers as comprising the fossil record. It also highlights how fossils inform us about extinct plants and animals and Earth's early environments.
◦ Dinosaurs: Concepts include the fact that some animals, like dinosaurs, are no longer found on Earth, that dinosaurs had bodies built for survival, and that the fossil record provides evidence about them and their disappearance. It also introduces paleontologists as scientists who study ancient living things.
◦ Adaptations: This section emphasizes that external characteristics of living things allow their needs to be met, and that certain living things survive better than others in a particular environment due to these characteristics.
◦ Ecosystems: This subbranch defines ecosystems as living and nonliving things that interact, noting how both living and nonliving elements can change a habitat and affect its inhabitants. It also discusses how humans can unintentionally or deliberately change ecosystems by introducing new species, which can affect native plants and animals.