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Technology & Engineering

Bacteria can be used to generate electricity

Microbial Fuel Cells

STEM Explained

In a few decades, some of the electricity you use might be generated by bacteria.

A 3D-rendered illustration of stem cells

My Stem Cell Donation Story

STEM Explained

In April 2016, Let’s Talk Science volunteer Daniel Tarade donated stem cells to help a person who needed a stem cell transplant to survive. Learn what stem cells are, how and why people donate, and what Daniel’s experience was like.

 Inside the Destiny Laboratory Module on board the International Space Station

Noise on Earth and on the International Space Station

Backgrounders

This backgrounder explains what noise is, how it is measured, and how it affects our hearing, wellness and more.

is-it-possible-to-change-water-into-cola

Is it possible to change water into cola?

Hands-on Activities

Explore the concept of displacement of fluids in this hands on activity.

A man powers a drone with a remote control. Image © Bestgreenscreen, iStockphoto.com

It's a Bird, It's a Plane, It's... a Drone!

STEM Explained

Drones are very cool and very useful aircraft! This resource explains how drones stay in flight, and outlines some of their uses.

Student making structure with pasta and marshmallows

It's All in the Shape

Lessons

Students look for shapes in structures and then build and test different frame structures for strength and stability.

General Motors Place

Keeping the Rink on Ice

STEM Explained

Learn about the chemistry of ice skating rinks, and the technology & engineering that lets us enjoy them indoors as well as outside.

Lighting inside the Destiny Laboratory Module

Light on Earth and on the International Space Station

Backgrounders

This backgrounder explains what light is, how it is measured, and how it affects people on Earth and astronauts on board the International Space Station.

Condensation on a window pane

Humidity on Earth and on the Space Station

Backgrounders

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

Condensation on the window of the Apollo 12 Lunar Module, November 1969

Humidity on Earth and on the ISS

Backgrounders

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

Construction vehicles use hydraulics. Image © Djahan, iStockPhoto.com

Hydraulics 101

STEM Explained

Hydraulics power many of the large machines you see around you.

illustration of a hydrogen car

The History and Uses of Hydrogen

STEM Explained

Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.

Drop tower ride

How is Lenz's Law Used in Drop Tower Rides?

STEM Explained

How do magnetic fields help you get down safely from the top of a drop tower ride? Learn how electromagnetic induction works at the amusement park.

Train oil cars

How is oil moved from one place to another?

Backgrounders

This backgrounder explains the four main ways that oil is moved over land and water.

Carillon Hydroelectric Power Station, Saint-André-d'Argenteuil, Quebec

Generating Electricity: Hydroelectric Power

STEM Explained

Learn how moving water can be used to generate electricity. This is called hydroelectric power generation.