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Plant Biology

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

Seeds of a pomegranate fruit

Plant Reproduction

Backgrounders

Learn about pollination and other forms of sexual reproduction in plants. And did you know that plants can also reproduce asexually?

Water droplets on succulent leaves

How Do Plants Survive in the Desert?

STEM Explained

Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.

Why do leaves change colour in the fall?

Why do leaves change colour in the fall?

Hands-on Activities

How do the green leaves of summer change to vibrant colours in fall? Explore plant pigments in this chromatography activity.

Seed Germinating

Plants: Germination

Picture Collections

6 images of some seedlings sprouting as one of the stages towards full plant growth

How does water move up a plant?

How does water move up a plant?

Hands-on Activities

Do an experiment with celery to learn about the structures that help plants take up water.

How do I construct a terrarium?

How do I construct a terrarium?

Hands-on Activities

You can make your own terrarium for growing plants!

Lawn mower mowing grass

How Do Plants Use Chemical Signalling?

STEM Explained

How do plants use scents? Learn how some plants use chemical signals to send messages to animals or other plants.

Water Lily

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

Iris

Flowers: Irregular Shape

Picture Collections

3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid

Sunflower

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

Petunias

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 in Harvard University

Green Walls

STEM Explained

Green walls use plant processes to improve air quality in buildings.

Massive algal bloom

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!