All animals depend on plants. Some animals eat plants and some animals eat animals that eat plants. An organism's behavior is related to the organism's environment. When the environment changes, some organisms survive, others die or move away. All organisms cause change in the environment where they live.
Humans depend on their natural and constructed environments.
Plan and conduct a simple investigation. Use data to construct a reasonable explanation. Communicate investigations and explanations. Distinguish between objects that occur in nature and objects made by people. K-5 Science Content Themes PUSD Science Standards Units 1.