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Unit D: Energy Flow in Global Systems

Cow

Cows, Methane, and Climate Change

STEM Explained

How do beef and dairy cows contribute to climate change? Livestock agriculture is a source of methane, a powerful greenhouse gas.

Krysten Rutherford

Krysten Rutherford

Career Profiles

PhD Candidate, Oceanography

Krysten Rutherford is a PhD Candidate of Oceanography at Dalhousie University.
Photo de Sheila Sadler au travail

Sheila Sadler

Sheet Metal Journeyperson

Sheila Sadler is a Sheet Metal Journeyperson for Viaduct Sheet Metal.
Dense tropical rainforest

Tropical Rainforest Biome

Backgrounders

Learn about the location, plants, animals, human impacts and conservation of tropical rainforest biome.

African savanna

Savanna Biome

Backgrounders

Learn about the location, plants, animals, human impacts and conservation of the savanna biome.

Sheridan Thompson sur une falaise rocheuse

Sheridan Thompson (she/her/they/them)

Career Profiles

Doctoral Candidate

Sheridan Thompson is a Doctoral Candidate at Memorial University of Newfoundland.
Variety of plant groups in Banff National Park, Alberta

Plant Taxonomy

Backgrounders

Learn about the categories, or phylum, of the plant kingdom with examples from each.

Leaf and the Sun

Plant Functions

Backgrounders

Learn about the important plant functions of photosynthesis, respiration and transpiration

Platinum crystals

Catalytic Converters

STEM Explained

Learn about how catalytic converters make vehicle emissions less harmful.

Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)

Carbon Dioxide on Earth and on the ISS

Backgrounders

Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Smoke from a crop-duster shows wake turbulence

What is Air Turbulence?

STEM Explained

Learn about the science behind the four main causes of turbulence.

dangerous tornado approaching wind turbine

What is a Tornado?

STEM Explained

Tornadoes are a common extreme weather phenomenon in Canada. How are they formed? How can you stay safe? And what is a storm chaser?

Why is rain not salty?

Why is rain not salty?

Hands-on Activities

Make a model of the water cycle and find out how water moves around on planet Earth.

A melting world-shaped glacier

What is Ocean Warming and Why Does It Matter?

STEM Explained

Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.

What is the Greenhouse Effect?

What is the Greenhouse Effect?

Hands-on Activities

Explore the greenhouse effect and learn about the impacts it can have on the environment.