Construct an explanation describing how organisms obtain resources from the environment including materials that are used again by other organisms.
In the last unit, students explored patterns in land and water on Earth. They build on that knowledge in this unit with a focus on how living things are found in different habitats around the planet, and how living things depend on both living and nonliving components of their environment for survival.
Once students have modeled the science phenomena of insects’ body parts, they then focus on one kind of insect: the ant. They conduct an experiment to test the taste preference of harvester ants, and observe how ants use their different body parts to get food, communicate with one another, and carry out other life functions.
This unit has students exploring animal habitat and predator-prey relationships. Once students model the living and nonliving parts of different habitats, they focus on how living things depend on other living things in their habitat for survival. As a class, students model the predator-prey relationship between foxes and rabbits in a forest habitat, and then dissect owl pellets to analyze a barn owl’s diet.
