Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?