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This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

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

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This science fair project idea investigates how the shape of an object affects drag.

This project determines how much the rebound rates of tennis balls change after ten games.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Will the shape of an ice cube impact how fast the ice melts?

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

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

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

This study observes plants, insects and an animal living in proximity to a known source of EMF.