Introduction - MST4.E.LE.6.Introduction: Plants and animals interact in a number of ways that affect their survival. The survival of plants and animals varies, in response to their particular environment. As the physical environment changes over time, plants and animals change.
Younger students should focus on simple, observable associations of organisms with their environments. Their studies of interactions among organisms within an environment should start with relationships they can directly observe.
Note: Although the concept of plants making their own food may be difficult for elementary students to grasp, they should understand that the Sun is the ultimate source of energy for life and physical cycles on Earth.