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A mole and the number of atoms or molecules in a mole

Moles and Molarity: Counting and Chemistry from Donuts to Soap

STEM Explained

To count tiny things like atoms and molecules, scientists use a measurement called the mole.

Graphic representation of the DNA sequence

Sanger Sequencing

Backgrounders

Learn about DNA sequencing and the Sanger Sequencing method.

Cross-section of the Earth showing layers.

Why does the Earth have Layers?

STEM Explained

An in-depth look at how the Earth got its layers.

Do you see a face in that electric socket? (michaeljmc, iStockPhoto)

Facial Recognition and the Brain

STEM Explained

Learn how your brain recognizes faces and why you sometimes see them in places they don’t exist!

Cartoon Higgs boson particle (lineartestpilot, iStockphoto)

Why Care About the Higgs Boson?

STEM Explained

Physicists are a bit like chefs, except they’re trying to figure out the recipe for the universe.

Ice technician on a zamboni at an outdoor skating rink

The Hidden Heroes of Hockey!

STEM Explained

Ice Technicians use math and physics in order to keep the ice ready for hockey.

Waves and particles

Introduction to Quantum Mechanics

STEM Explained

Learn what quantum mechanics is, the history of its development and the ways we use it today.

Bee on flower covered in pollen

Pollinators are Important!

STEM Explained

Insects and other animals that are pollinators of plants play an important role in ecosystems.

Human organs for transplantation

Organ Transplantation

Backgrounders

Learn about organ transplantation - what it is, how it can save lives, how your immune system responds, and how the matching process works.

Screen shot from The Solutioneers Episode 10

The Solutioneers Week 10: Connected

Interactives

This week's episodes and hands-on activity explore Apps and Social Networks.

Screen shot from The Solutioneers Episode 9

The Solutioneers Week 9: Renewable Energy

Interactives

This week's episodes and hands-on activity explore renewable energy.

STEAM Partners logos

STEAM Partners

Video Channels

Check out our exciting partners Exploring by the Seat of Your Pants, the Tech Bandits, and the STEAM Sisters!

Screen shot from Solutioneers episode 8

The Solutioneers Week 8: Statistical Analysis

Interactives

This week's episodes and hands-on activity explore Statistical Analysis.

Screen shot from Solutioneers episode 5

The Solutioneers Week 6: Just Keep Coding

Interactives

This week's episodes and hands-on activity explore Python coding.

Solutioneers Episode 5 screen shot

The Solutioneers Week 5: Chemical Bonding

Interactives

This week's episodes and hands-on activity explore some cool chemistry!