What are Carbon Offsets?
STEM Explained
Can carbon offsets help you reduce your environmental footprint, practice sustainable living and fight climate change?
What are Greenhouse Gases?
Backgrounders
This backgrounder explains what greenhouse gases are and how they contribute to climate change.
What are the Pros and Cons of Ethanol Biofuel?
STEM Explained
Biofuels like ethanol might help fight climate change. But they can contribute to food insecurity and greenhouse gases in ways that might surprise you.
Understanding the Nitrogen Cycle
STEM Explained
What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?
Vegetables
Picture Collections
14 images of some plants such as carrots, cabbage and leeks whose roots, stems or leaves are used for food
The Classification of Life: From Linnaeus to DNA Barcoding
Backgrounders
Learn about two taxonomy systems that scientists use to classify the life around us.
Should Scientists Clone Extinct Species?
STEM Explained
Cloning makes it possible to bring extinct species back to life. But is that a good idea?
Reptiles
Picture Collections
10 images of some cold-blooded vertebrates such as snakes, lizards and alligators typically having dry, scaly skin
Plants: Growth
Picture Collections
10 images showing some stages of plant growth from planting to sprouts growing to harvesting
Plants: Needs
Picture Collections
8 images representing some of the needs of plants for healthy growth such as water, nutrients and light
Plants: Parts
Picture Collections
12 images of some major parts of plants such as stems, roots, flowers and leaves
Plants: Seeds
Picture Collections
6 images of some seeds which are the fertilized part of a plant used for germinating new plants such as fennel, kiwis and pumpkins
Marine Microbiology: Meet the Microbes of the Sea!
STEM Explained
The ocean is full of very small but very useful creatures called microbes. Without them, none of the sea plants or animals you’ve seen would exist!
Natural Selection in Your Backyard
STEM Explained
A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.
Plants: Biomes
Picture Collections
9 images of plants in some large naturally occuring habitats called biomes such as tundra, grasslands and boreal forests