Why do trees have bark? Julien, age 6, Melbourne. This is a great question, Julien. We are so familiar with bark on trees, that most of us just take it for granted. But bark is one of the most complex ...

This hands-on activity will connect your child with the trees in her backyard and neighborhood. Aside from being big and beautiful, trees serve a very important purpose on our planet. Can your child ...

Trees take top billing for the tallest plants on Earth, but their unassuming start as a little seed leaves a lot of questions! Let's take a look at what gets you from that seed to a full-grown tree in ...