CK-12 Foundation
Ck 12: Episd: Trophic Levels
[Free Registration/Login may be required to access all resource tools.] Understand what trophic levels are and identify producers and consumers in a food web.
Texas Education Agency
Texas Gateway: Food Chains, Food Webs and Food Pyramids
The following is a tutorial of food chains, food webs and food pyramids.
OpenSciEd
Open Sci Ed: 7.4 Matter Cycling & Photosynthesis
This unit on matter cycling and photosynthesis has students investigating the idea that all food comes from plants.
Scholastic
Scholastic: Study Jams! Science: Ecosystems: Food Webs
A video and a short multiple-choice quiz on food webs that explains the difference between food webs and food chains, and the relationships that exist between organisms.
CK-12 Foundation
Ck 12: Earth Science: Flow of Energy in Ecosystems
[Free Registration/Login may be required to access all resource tools.] Describes how energy is transfered from one organism to another.
Texas Education Agency
Texas Gateway: Energy and Matter in Ecosystems
Learners analyze food chains, webs, and pyramids to determine how energy flows and matter cycles through ecosystems.
CK-12 Foundation
Ck 12: Life Science: Flow of Energy
[Free Registration/Login may be required to access all resource tools.] When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. Every time energy is transferred from one organism to another, there is a...
The Wonder of Science
The Wonder of Science: Ms Ls2 3: Matter Cycling and Energy Flow in Ecosystems
Work samples, phenomena, assessment templates, and videos that directly address standard MS-LS2-3: matter cycling and energy flow in ecosystems.
OpenSciEd
Open Sci Ed: Net Logo: Chloroplasts and Food Model
The simulation shows the relationship between the inputs and outputs in the chloroplasts of plant, that can help explain how they convert water and carbon dioxide to glucose and water with the help of energy absorbed from light.
BiologyWise
Biology Wise: An Analogy: Biomass Pyramid vs. Energy Pyramid
Explains what biomass and energy pyramids are and provides a table highlighting their differences.