This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Make sourdough bread...and learn some colonial history and modern science in the process!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.