Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This science fair project idea investigates the difference in reaction times between boys and girls.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

This science fair project idea explores whether talking to a plant will help it grow.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

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