NOAA
Deep-Sea Ecosystems – Entering the Twilight Zone
Imagine an ecosystem without any light or oxygen, where living things convert carbon dioxide into food. This ecosystem is thriving and might just be the largest ecosystem on our planet, yet we know very little about it. The instructional...
Curated OER
Sample Midyear Examination (Chemistry and Biology)
A 12-page midterm exam sample can be given to young scientists in preparation for an exam. This particular installment is geared toward a class that delves into both ecology and chemistry concepts. There is no way to separate the 50...
Curated OER
Ecology
For use early in the year with your ecology class, this collection of slides introduces viewers to cycles in nature and relationships between organisms. There is a food web diagram, but the presentation is incomplete without any diagrams...
Purdue University
Mammal Food Webs
You are what you eat—or at least a part of what you eat. Budding scientists examine owl pellets to develop their own food webs. They use tooth and skull identification techniques to classify what they find.
It's About Time
Energy Flow in Ecosystems
Emerging biochemists more fully understand the flow of energy in ecosystems as they explore the laws of thermodynamics and relate them to energy transfer in food chains. They also investigate heat loss from the human body and how...
Curated OER
Entering the Twilight Zone
Students describe major features of cold-seep communities and the process of chemosynthesis as it relates to organisms in each habitat. In this deep-sea habitats instructional activity, students study the categorization of ocean...
Curated OER
The Biosphere
In this biosphere worksheet, students identify the different levels of organization that ecologists study. Students complete charts, sentences, and answer short answer questions.
Curated OER
Trophic Levels and Food Webs
In this biology worksheet, students identify and locate various vocabulary terms related to trophic levels and food webs. There are 27 biology terms located in the word search.
Curated OER
A Tale of Two Reactors
Tenth graders role-play as members of the food chain. Sticky tables acting as polluting factors are introduced and members of different trophic levels suffer varying degrees of damage due to those pollutants.
Scholastic
Study Jams! Food Webs
Rhinozilla is back to take your lesson plan on trophic levels a step higher! After showing the video on food chains (available through the See All Related Jams button), add to it by showing this one. It deals with omnivores and food...
Curated OER
2005 Grade 8 Science Released Test Questions
Here is a collection of 22 multiple-choice questions on topics from the physical and life sciences. Apparently they came from an 8th grade comprehensive science exam and have been released for public use. They may serve as a sufficient...
Chicago Botanic Garden
Leaf Litter Ecology Lab
Some organisms spend their entire lives in leaf litter. The third in a series of six is a great lesson exploring the community of leaf litter. Groups gather and then spread leaf litter over white paper and remove leaves/twigs while...
Curated OER
Trophic Relationships, Cycling of Chemicals, Human Impact on Ecosystems and Conservation
Students explore how the energy flow through a system is related to trophic levels. They investigate how organisms affect the cycling of elements and water through the biosphere. Students participate in lab activities to observe ways...
Curated OER
Plants 'R' Us!
Students investigate the interdependencies of plants and animals, and study what a food web is. They create a food web using yarn and images.
Curated OER
Ecosystems
Students work in small groups to create a poster illustrating the flow of energy through a typical ecosystem, then present their posters to the class.
Curated OER
Aquatic Ecosystem Exploration
Students visit a local stream, pond, creek, or river and collect macroinvertebrates. They sort macroinvertebrates and identify each species using a dichotomous key. Students decide on trophic levels and construct a possible food web for...
Curated OER
Principles of Ecology
In this ecology worksheet, learners will fill in a graphic organizer showing the relationship organisms have with their environments and with each other. This includes biotic and abiotic factors, tropic levels, and ecological pyramids....
Howard Hughes Medical Institute
Building Ecological Pyramids
Looking for a fresh take on traditional food/energy pyramids? Conduct an innovative activity where pupils build their own! The lesson uses research data from Gorongosa National Park in Mozambique for a real-life safari touch. Scholars...
Simply Worksheets
Food Chain Categories
For this food chains worksheet, students fill out the food chains listed with the correct consumer and producers. Students fill out 4 food chains total.
MENSA Education & Research Foundation
Ecosystems
Explore the Earth's different ecosystems through four lessons, an assessment, and extension activities. Lessons include informative text and step-by-step instructions to apply knowledge in interactive, and thought provoking ways; such as...
Curated OER
Biomanipulation
Young scholars explore the effects of aquatic trophic relationships on water transparency. They observe and explain the effects of reducing nutrient inputs on agal density on water transparency.
Curated OER
Food Chains & Food Webs
Tenth graders examine how energy is lost through different trophic levels. In this trophism lesson students construct a food web and view a video.
Curated OER
Identifying Trophic Levels Through the Dissection of Owl Pellets
Students discover a part of the natural food chain through the dissection of owl pellets. They compare, identify, and record rodent skeletal parts they find in the pellet to skeletal diagrams and try to reconstruct a skeleton from the...
Biology Junction
Energy Flow in an Ecosystem
Every living thing requires a food source, thus the interconnections in ecosystems become complex. Scholars learn about these interconnections in a presentation on energy flow. It starts with the sun and moves through many different...
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