Ecosystem Interactions Food Web Activity Worksheets Assessment NGSS MS-LS2-1


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This 2 1/2 hour activity will engage and challenge your students! It’s no prep and covers NGSS LS2.A:  Interdependent Relationships in Ecosystems: Organisms, and populations of organisms, are dependent on their environmental interactions both with other living things and with nonliving factors. (MS-LS2-1)

What Students Do:

-Students are asked How do you think snakes, blue jays, hawks, coyotes and lizards interact with each other in an ecosystem? This taps into their prior knowledge.

-The class then watches a 7-minute Amoeba Sisters video about Ecological Relationships to help them add to the inquiry-based question above.

-Students then use a website that tells them the roles snakes, blue jays, hawks, coyotes and lizards play in an ecosystem.

-Students learn about Known Predators, such as, what is it important for in the ecosystem, plant and animal food, carnivore, omnivore or herbivore? the habitat and any Mutualism, Parasitism, and Commensalism for each of the above organisms.

-Students then answer rigorous and critical thinking questions about these organism’s relationships in that particular ecosystem.

-Using all the information they gathered about the relationships between the above organisms, students then create a food web.

-To add some scaffolding to the new knowledge students just gained, they do a 4-page engaging worksheet.

-Students then take a Google Form Assessment.

This resource includes the following:

-7 Slide Teacher Google Slideshow for lesson pacing

-Student handout-6-page Interdependent Relationships in Ecosystems Reading Passages

-4-page worksheet and key, both hard copy or virtual

-Activity Key

-20 Question Google Form Assessment

Concepts Included:

Patterns in Predator Prey Relationships

Interactions in Ecosystems

Competition in Ecosystems




Food Web








Includes the Following NGSS Standards:

LS2.C:  Ecosystem Dynamics, Functioning, and Resilience

• Ecosystems are dynamic in nature; their characteristics can vary over time. Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations. (MS-LS2-4)

LS2.A:  Interdependent Relationships in Ecosystems

• Organisms, and populations of organisms, are dependent on their environmental interactions both with other living things and with nonliving factors. (MS-LS2-1)

• In any ecosystem, organisms and populations with similar requirements for food, water, oxygen, or other resources may compete with each other for limited resources, access to which consequently constrains their growth and reproduction. (MS-LS2-1)

Crosscutting Concepts

Cause and Effect: Cause and effect relationships may be used to predict phenomena in natural or designed systems.

Systems and System Models: Models can be used to represent systems and their interactions—such as inputs, processes and outputs—and energy, and matter flows within systems.

Patterns: Observed patterns in nature guide organization and classification and prompt questions about relationships and causes underlying them.

Energy and Matter: Tracking energy and matter flows, into, out of, and within systems helps one understand their system’s behavior.

Stability and Change: For both designed and natural systems, conditions that affect stability and factors that control rates of change are critical elements to consider and understand.


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