Science Worksheets and Study Guides Third Grade. What are Ecosystems?

The resources above correspond to the standards listed below:

New Jersey Standards

NJ.5.3.4. Life Science: Life science principles are powerful conceptual tools for making sense of the complexity, diversity, and interconnectedness of life on Earth. Order in natural systems arises in accordance with rules that govern the physical world, and the order of natural systems can be modeled and predicted through the use of mathematics.
5.3.4.B. Matter and Energy Transformations: Food is required for energy and building cellular materials. Organisms in an ecosystem have different ways of obtaining food, and some organisms obtain their food directly from other organisms.
Almost all energy (food) and matter can be traced to the Sun.
5.3.4.B.1. Identify sources of energy (food) in a variety of settings (farm, zoo, ocean, forest).
5.3.4.C. Interdependence: All animals and most plants depend on both other organisms and their environment to meet their basic needs.
Some changes in ecosystems occur slowly, while others occur rapidly. Changes can affect life forms, including humans.
5.3.4.C.2. Explain the consequences of rapid ecosystem change (e.g., flooding, wind storms, snowfall, volcanic eruptions), and compare them to consequences of gradual ecosystem change (e.g., gradual increase or decrease in daily temperatures, change in yearly rainfall).
5.3.4.D. Heredity and Reproduction: Organisms reproduce, develop, and have predictable life cycles. Organisms contain genetic information that influences their traits, and they pass this on to their offspring during reproduction.
Plants and animals have life cycles (they begin life, develop into adults, reproduce, and eventually die). The characteristics of each stage of life vary by species.
5.3.4.D.1. Compare the physical characteristics of the different stages of the life cycle of an individual organism, and compare the characteristics of life stages among species.