National Science Education Standards
Abilities necessary to do scientific inquiry (Grades Kindergarten - 4)
Ask a question about objects, organisms, and events in the environment
Employ simple equipment and tools to gather data and extend the senses
Use data to construct a reasonable explanation
Organisms and environments (Grades Kindergarten - 4)
An organism's patterns of behavior are related to the nature of that organism's environment, including the kinds and numbers of other organisms present, the availability of food and resources, and the physical characteristics of the environment. When the environment changes, some plants and animals survive and reproduce, and others die or move to new locations.
All organisms cause changes in the environment where they live. Some of these changes are detrimental to the organism or other organisms, whereas others are beneficial.