This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.