Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This project examines the affect of temperature on viscosity and surface tension of different liquids.