What makes soil hard and compacted?
Hands-on Activities
Explore how walking on soil changes how water soaks into the ground and why that matters to gardeners and farmers.
What if You Could Choose Your Baby?
STEM Explained
Many people have had children using assisted reproductive technologies. But some of these medical biotech techniques can raise some ethical issues.
Understanding the Teen Brain
STEM Explained
Teen brain development prepares teens for adulthood, but also affects their emotions.
Should Scientists Clone Extinct Species?
STEM Explained
Cloning makes it possible to bring extinct species back to life. But is that a good idea?
Plants: Germination
Picture Collections
6 images of some seedlings sprouting as one of the stages towards full plant growth
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
How to Find a Mate When You Smell Like Dung
STEM Explained
Some dung beetles use alternative reproductive tactics to increase their chances of finding a mate. Learn what this tells us about evolution and biodiversity.
Flowers: Cup Shape
Picture Collections
8 images of some flowerheads such as roses and water lilies whose outer petals are longer than the petals in the centre of the flower
Flowers: Irregular Shape
Picture Collections
3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid
Flowers: Radial Shape
Picture Collections
7 images of some symmetrical flowerheads such as asters and sunflowers whose petals radiate from the centre of the flower
Flowers: Trumpet Shape
Picture Collections
5 images of some flowerheads such as petunias and lilies that start as a narrow base and widen to an open shape
Green Walls
STEM Explained
Green walls use plant processes to improve air quality in buildings.
How are the World's Bee Populations Doing?
STEM Explained
Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.
Careers: Soil Scientist
Picture Collections
5 images some work that a scientist who studies the Earth's soil might do such as classifying types of soil and measuring the slope of soil
Eutrophication: Why you should care about pond scum
STEM Explained
When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!