In this science fair project, young children notice and track changes in trees throughout the year.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Test your friends to find out if you can replicate the placebo effect's incredible results.