What do these 7th grade ecosystems worksheets cover?

10 printable 7th grade ecosystems worksheets in 4 skill sets, in the order they appear on this page: biomes and biodiversity; food webs and matter cycles; populations and invasive species; and symbiosis and predators.

How do energy and matter move through a food web?

Producers capture light energy and store it in food, and when one organism eats another, both matter and stored chemical energy move along. The Sun sends energy to a marsh but no matter. Track Matter and Energy Through a Salt Marsh asks students to mark arrows as energy, matter or both.

How do you calculate population growth?

Change equals births plus immigration minus deaths minus emigration. The growth rate is the change divided by the starting size times 100. A population of 500 with a change of +25 grows at 5 percent.

What are competition, predation and mutualism?

In competition two species need the same limited resource, in predation one species eats another, and in mutualism both species benefit. Analyze Organism Interactions From Population Graphs has students name each one from a graph.

Why are invasive species a problem?

An invasive species is a nonnative species that spreads and harms its new home. Invasive Species Fact File Organizer uses cane toads in Australia to show where it came from, how it arrived, why it spreads, its effects and what people are trying to do.

7th Grade Ecosystems Worksheets

Ages 12-13 · 4 sub-topics · Free previews · Print-ready PDFs

An ecosystem is a community of living things and the nonliving parts of the place where they live. There are 10 worksheets for 7th grade, each with an answer key, on biomes and biodiversity, food webs and matter cycles, populations and invasive species, and symbiosis and predators. Sea Star Loss and the Kelp Forest Chain, Calculate Population Growth From Rates and Test Symbiosis Claims With Data are three of the sheets. Native sheets here practice MS-LS2-1, MS-LS2-2, MS-LS2-3, MS-LS2-4 and MS-LS2-5.

Written by Adi Ackerman, Head Teacher

Grade7th Grade

TopicEcosystems

Frequently Asked Questions

Biodiversity is the variety of living things in a place. A place with high biodiversity can often provide more ecosystem services, such as pollination and clean water. Ecosystem Services and Biodiversity Value compares two town plans.

More science worksheets

Explore all of our 7th grade science worksheets, covering matter, energy, forces and motion, waves and light, and more.

Matter Energy Forces and Motion Waves and Light Earth and Space Living Things Earth Systems Earth Science Scientific Method Engineering and Design

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