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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

This science fair project idea investigates whether plants can survive being frozen.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Help your child build her very own science laboratory at home for experiments and science projects. This is a quick, easy, and fun educational tool!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

Check out this cool science fair project on identifying rocks and minerals for kids.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This project examines the concentration of dissolved oxygen in water, with and without oil.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project idea identifies and understands adaptations in birds.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

This science fair experiment examines the relationship between gender, age, and smiling.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

The project researches how lubricants affect the mechanical advantage of a pulley.