Environmental Science
The science of smog
Lesson duration 05:44
On July 26, 1943, Los Angeles was blanketed by a thick gas that stung people’s eyes and blocked...
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Results for "kim preshoff" (19)
Science & Technology
Why is biodiversity so important?
Lesson duration 04:19
Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually...
Science & Technology
What’s a smartphone made of?
Lesson duration 04:56
As of 2018, there are around 2.5 billion smartphone users in the world. If we broke open all the...
Environmental Science
The nurdles’ quest for ocean domination
Lesson duration 04:55
Nurdles are the tiny, factory-made pellets that form the raw material for every plastic product...
Social Studies
Population pyramids: Powerful predictors of the future
Lesson duration 05:02
Population statistics are like crystal balls -- when examined closely, they can help predict a...
Numbers & Operations
How to visualize one part per million
Lesson duration 02:28
“Parts per million” is a scientific unit of measurement that counts the number of units of one...
Science & Technology
How did the deepest part of the ocean get so polluted?
Lesson duration 04:41
The Mariana trench, the deepest place in the Pacific Ocean is also one of the most polluted...
How bird vomit helps us understand history
Lesson duration 08:03
Sounds disgusting, doesn't it? How in the world can bird vomit help us learn about the past...
Science & Technology
Can wildlife adapt to climate change?
Lesson duration 04:47
With rising temperatures and seas, massive droughts, and changing landscapes, successfully...
Social Studies
Overpopulation – the human explosion explained
Lesson duration 06:40
In a very short amount of time, the human population exploded and is still growing very fast....
Social Studies
Why do India and China have so many people?
Lesson duration 02:59
China and India are the two most populous countries in the world. However, just how many more...
The nurdles’ quest for ocean domination | TED-Ed
Lesson duration 04:55
Nurdles are the tiny, factory-made pellets that form the raw material for every plastic product...
The mysterious origins of life on Earth - Luka Seamus Wright
Lesson duration 04:57
Billions of years ago, simple organic compounds assembled into more complex coalitions that could...
Science & Technology
The mysterious origins of life on Earth
Lesson duration 04:57
Billions of years ago, simple organic compounds assembled into more complex coalitions that could...
Health
What really happens to the plastic you throw away
Lesson duration 04:07
We’ve all been told that we should recycle plastic bottles and containers. But what actually...
Science & Technology
What happens when continents collide?
Lesson duration 04:58
Tens of millions of years ago, plate tectonics set North and South America on an unavoidable...
Why don't we send our trash to space?
Lesson duration 05:23
There are over 131 million pieces of debris currently whipping around the planet. They range in...
Public Health
Which is better: Soap or hand sanitizer?
Lesson duration 06:15
Your hands, up close, are anything but smooth. With peaks and valleys, folds and rifts, there are...