Science | Life Science | Flowering Plants, Shrubs and Trees

Flowering plants, shrubs and trees provide the environment with much needed oxygen and fight soil erosion. They also provide food and shelter for many animals, as well as contribute to the fertility of soil with their dead leaves and flowers.

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How tall can a tree grow?

For Jack and his beanstalk, the sky was the limit, but nature's giants hit a point at which they can't grow any taller. What prevents lofty trees like sequoias from soaring any higher?


How tall can a tree grow?

How tall can a tree grow?

Can a tree grow and grow? Or can a tree grow only to the point that water transport limits it? Learn more about tree growth and the tallest trees. See more »

How Grow Houses Work

How Grow Houses Work

Grow houses are homes devoted to growing marijuana. Learn why grow houses may be in your neighborhood, especially if you live in Cali or Vancouver. See more »

Why do leaves change color and turn red?

Why do leaves change color and turn red?

If you ever wondered why leaves change color in autumn, you're not alone. Learn why leaves change color, and how they get that vibrant red hue. See more »

How Poison Ivy Works

How Poison Ivy Works

Poison ivy can be very difficult to spot, but there will be no mistaking it if you brush up against it. Learn about poison ivy and treating a poison ivy rash. See more »

How Venus Flytraps Work

How Venus Flytraps Work

Plants that eat other creatures? It sounds like a genetic experiment gone awry. But there's actually nothing unnatural about it; carnivorous plants have been around for thousands of years. Find out all about the Venus Flytrap. See more »

How does hemp work?

How does hemp work? What do rope and "organic clothes" and drugs have to do with each other? See more »

What are frankincense and myrrh?

What are frankincense and myrrh?

The three wise men in the story of Christmas carried gold, frankincense and myrrh. What are frankincense and myrrh? Can you still get them these days? See more »