Topic: carbon dioxide

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Ocean sponges have incredible filtering power

Ocean sponges are fascinating multi-cellular animals that don't walk or swim. They eat by filter-feeding, straining the water around them to capture organic debris particles and microscopic life forms. How powerfu...

Deep Look: The Hidden Perils of Permafrost

When you put a permafrost core in a CT scanner and analyze the data, you're traveling back in time to answer important questions: What was buried deep within the frozen soil? How much of it is ice or plant matter? How...

It’s Okay to Be Smart – The Cycle: Carbon and Oxygen and You

From PBS Digital Studios and Joe Hanson of It's Okay to Be Smart, this is The Cycle: Carbon and Oxygen and You, a visualized explanation for what happens when we breathe. And here it is explained: via It's Oka...

The difference between weather and climate change

Dr. Neil deGrasse Tyson, astrophysicist and host of StarTalk and Cosmos: A Spacetime Odyssey, demonstrates the difference between weather and climate change as he walks along the beach with a dog.  Weather is ...

Ice Cores: Measuring Earth’s atmosphere from 20,000 years ago

When you drill 364 meters (1194 feet) down into Antarctic ice, taking out a cylindrical section called an ice core, you can find out about the Earth’s temperature and carbon dioxide levels from over 20,000 yea...

Mars: Dry Ice and Dunes

Watch the spring thaw of seasonal dry ice (frozen carbon dioxide) on Mars, brought to us by the Mars Reconnaissance Orbiter.

How to: Brusspup’s Giant Bubbles + Dry Ice Experiment

Dry Ice and bubbles are nothing new, but it doesn’t get old too quickly either, especially when it looks great (cue the music and backlighting) and is a fun DIY. You’ll need Dawn Dish Detergent (5 tablesp...

Bubble Planets: How to make bubbles filled with dry ice vapor

Bubbles + Dry Ice (the solid form of carbon dioxide) come together in this step by step video for “creating planets.” It’s also a great DIY parent-kid project for learning about physics, gasses, surf...