Earth’s climate is changing in a big way, and it’s because there's more carbon dioxide in the atmosphere than at any point in our species’ history. But Earth’s climate has changed before. How do we know that this time we’re the cause? We...

Carbon dating transformed fields like archeology and paleontology, but its use might be in danger.

Carbon dating is a lot more than just getting the age of a dinosaur bone. We can learn a lot about the world through its use, and it turns out, we have.

More than 4 billion years ago, the crust of the Earth was still cooling and the oceans were only beginning to form. But in recent years, we've started to discover that, even in this hellish environment, life found a way.

Carbon dating transformed fields like archeology and paleontology, but its use might be in danger.

Chemists need stoichiometry to make the scale of chemistry more understandable - Hank is here to explain why, and to teach us how to use it.



Table o
f Contents
Atomic
Mass Units
2:24
Moles
5:12
Molar Mass...

420 million years ago, a giant feasted on the dead, growing slowly into the largest living thing on land. It belonged to an unlikely group of pioneers that ultimately made life on land possible -- the fungi.

Isotopes are just different atoms that represent the same element but have a different mass. In this video, students will learn what is an isotope and how to tell the difference between isotopes of different atoms. This video will make...

Polyunsaturated Fat Oxidation

Monounsaturated Fat Oxidation

Learn the basics about Relative Atomic Mass. It is a tricky concept that's actually quite simple to understand and here, you will know how to calculate it. Find more in this video!

When you read about the ages of certain ancient artifacts, or even the age of the earth itself, how do we know such numbers? How can we know that a fossil is precisely 250 million years old? The key technique here is radiometric dating....

What are Isotopes? Find out in this video from the Properties of Matter chapter.