Crash Course
Population & Food: Crash Course Geography
Today we’re going to talk about the link between population and food energy. As the world's population keeps growing, finding ways to provide enough food and water for everyone while supporting a sustainable environment can be tricky!...
Bozeman Science
Biotic and Abiotic Factors
Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms,...
Crash Course
Ecosystem Ecology: Links in the Chain - Crash Course Ecology
Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in...
Crash Course Kids
Food Webs
Last time we put a Polar Bear in the desert and we still feel bad about that, but there's a lot more going on in ecosystems than just temperature. In fact, there are so many elements in ecosystems, that if just one leaves or gets out of...
Crash Course Kids
Home Sweet Habitat: Crash Course Kids
How would a Polar Bear do if you put it in the desert? Not well. But why? Why can't anything live anywhere? Well, this has to do with Habitats and how animals (including humans) are suited for living in one place over another. In this...
Bozeman Science
Ecosystem Ecology
In this video Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals. He describes the major...
Bozeman Science
LS2B - Cycles of Matter and Energy Transfer
In this video Paul Andersen explains how matter moves from the environment into living organisms and back into the environment. Food webs are used to show how matter and energy move through organisms. Ecological pyramids show that matter...
Bozeman Science
Ecosystems
Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually leads to logistic growth. Real data from Yellowstone...
Curated Video
I WONDER - What Is A Trophic Level?
This video is answering the question of what is a trophic level.
Visual Learning Systems
Ecosystems and Food Chains
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Curated Video
I WONDER - What Are Different Types Of Decomposers?
This video is answering the question of what are different types of decomposers.
Visual Learning Systems
Summing Up
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Visual Learning Systems
Quiz
In this video students will learn how living things and nonliving things interact in ecosystems. Specific attention is given to identifying producers, consumers and decomposers. Vivid, live-action video shows these relationships in...
Curated Video
Trophic level
The position an organism occupies within a food chain. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Consumer
Any organism that gets its energy by consuming other organisms. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Food webs – What happens next?
A cricket stumbles into the territory of a gladiator spider ... what happens next? Life processes - Living things in their environments - Food webs A Twig Tidbit Film - What happens next? A short section of film is played and the...
Curated Video
Butterfly's breakfast
Explanation of a food web. Life processes - Living things in their environments - Food webs Learning Points Herbivores eat only plants. Carnivores eat only animals. Food chains can be combined to create a food web. A Twig Curriculum...
Curated Video
The nutcracker
How can a bird that eats a plant's seeds actually help the plant survive? Life processes - Green plants - Fertilisation and dispersal Learning Points Dispersal means the spread of seeds to new areas. Animals disperse seeds by eating and...
Curated Video
Sea otters
The vital role of sea otters in maintaining a food web. Life processes - Living things in their environments - Food webs Learning Points Omnivores eat both plants and other animals. An organism can belong to several food chains. A...
Curated Video
Sharks and fur seals
Case study on the food chain of sharks and fur seals. Life processes - Living things in their environments - Food chains Learning Points Primary consumers eat producers, secondary and tertiary consumers eat other animals. Producers make...
Curated Video
Food Chain - Ecosystem Energy
Find out how energy flows up a food chain. Life processes - Living things in their environments - Food chains Learning Points All consumers ultimately rely on producers for energy. A food chain consists of organisms that rely on each for...
Curated Video
Great flood of the Kalahari
Once a year the Kalahari desert floods, enabling life to flourish. Life processes - Living things in their environments - Obtaining food Learning Points Carnivores eat only animals. Predators are animals that hunt and eat other animals....
Wonderscape
The Cycle of Life: Matter and Energy in Ecosystems Review
Review the critical concepts of how matter and energy interact in natural systems. This video summarizes the energy processes in organisms and ecosystems, highlighting photosynthesis in plants, energy transfer through food consumption,...
Wonderscape
Ecosystem Dynamics: Exploring Matter and Energy Flow
Dive into the intricate world of ecosystems, where every element, from the smallest organism to the broadest landscapes, plays a crucial role in the circulation of matter and energy. This video unravels how producers, consumers,...