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Bird Bones video, free growth and development, adaptation, circulatory system, observation, vertebrates, muscular system, birds, mammals, structure and function, skeletal system, animals, classification, human body, anatomy
Making Butter video, free, ClosedCaptions, Updated polar/nonpolar, solution, surface tension, digestive system, mammals, human body, mixture, water
Primary Consumers video, ClosedCaptions, Updated, checked food web, photosynthesis, ecosystem, plants, animals, energy
Secondary Consumers video, free, ClosedCaptions, Updated, checked food web, growth and development, cycles, ecosystem, plants, animals, classification
Producers video, free, Updated, checked food web, photosynthesis, plant parts, cycles, ecosystem, plants
Scavengers and Decomposers video, free, ClosedCaptions, Updated food web, adaptation, birds, fungi
Hunting with an Umbrella video, free, ClosedCaptions, Updated food web, arthropods, observation, animals, classification, investigations and experiments
Bird Behavior text page food web, Impact of humans, vertebrates, behavior, ecosystem, birds, animals
Muscles Don't Push text page muscular system, engineering, structure and function, misconceptions, skeletal system, human body, anatomy
How Does a Butterfly Fly?swallowtail butterfly text page, free adaptation, arthropods, model, muscular system
Fact checking GMOs text page cells, food web, genetics, critical thinking, plant parts, information processing, misconceptions, plants, classification

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