Topic: Decomposition

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(NH4)2Cr2O7! Ammonium Dichromate Volcano

(NH4)2Cr2O7! Or… an Ammonium Dichromate Volcano! With some heat, these (highly toxic) orange crystals will thermally decompose as they release heat, nitrogen, water and green dichromium (III) oxide ash.  Via ...

Alaska: The Nutrient Cycle

Alaska: The Nutrient Cycle by wildlife filmmaker Paul Klaver. Once they enter fresh water chum salmon stop feeding and morph into an aggressive creature intent only on mating. After spawning, they die and their b...

Dead stuff – The secret ingredient in our food chain

When you picture the lowest levels of the food chain, you might imagine herbivores happily munching on lush, living green plants. But this idyllic image leaves out a huge (and slightly less appetizing) source of nouri...

Fabulous Food Chains and The Dirt on Decomposers

Everyone eats, right? But how does that food get the energy to power you? In this episode of Crash Course Kids, Sabrina talks about the way energy moves, or flows, through an ecosystem and how that movement forms Food...

Home Sweet Habitat & Food Webs – Crash Course Kids

Why isn't a polar bear happy in the desert? Why aren't spider monkeys essential in the Arctic? In this episode of Crash Course Kids, Sabrina Cruz explains how habitats provide animals with the air, food, water, shelte...

How Does Oakland Turn Food Scraps to Soil?

Though you may not see a compost bin next to the trash and recycling bins where you live, in California's Bay Area, a green bin is the norm. From those green bins, food scraps, yard waste, and the like can be transfor...

Inside the Compost Cycle: Turning waste to nutrient-rich soil

From KQED Science, find out how San Francisco’s 600 tons of compostable waste can be transformed into a dark, nutrient-rich material that will not only feed plants to improve the quality...

Satellite Tracks Saharan Dust to Amazon in 3-D – NASA

Watch 182 million tons of dust ride the wind out of Africa's Sahara Desert in 3D, as tracked from 2007 through 2013 by lidar, thanks to CALIPSO, the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation sa...

Soil 101

What is soil made of? Why is it important? And how can we nurture soil for the benefit of humans and our ecosystems? Learn about soil with the help of Soil 101, a 2015 animation from the Food and Agriculture Organizat...

Soil Life in Action: Bioturbation with and without soil fauna

Bioturbation is the mixing of (plant) residues into soils and sediments by biotic activity. It is one of the fundamental processes in ecology, as it stimulates decomposition, creates habitats for other (micro)fauna an...

The decomposition of a pineapple over 2 months

The decomposition of a pineapple over 2 months, time-lapsed by TEMP0NAUT. Watch more decomposition videos.

The decomposition of a watermelon over 35 days

35 days of a watermelon decomposing.  Via laboiteverte.fr.

Time lapse decomposition of a tomato over two months

Time lapse decomposition of a tomato over two months. 

Under The Dock, a marine life series by Hakai Institute

Described as a fearsome predator on the British Columbia coast, sunflower sea stars "can grow to a diameter of one meter, and have a voracious appetite for all sorts of animals on the rocky reef." From Hakai Institute...

Vermicomposting: How worms can reduce our waste

One third of food made in the world each year ends up in the trash can. How can we stop the waste by putting that food to good use? From TED Ed, learn how worms can naturally convert our organic waste — green leaves, ...

Whale Fall (After Life of a Whale)

"When a whale dies, the story has just begun." A beautiful paper-cutout puppet illustration of the different stages of how a whale decomposes, supporting the surrounding community of organisms for 50-75 year...

What is dust made of?

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of br...

What is fire? Is it a solid, a liquid, or a gas?

Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twi...

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