In this project, waves of vibrations are experimented with using water in glasses.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This science fair project idea determines if family members can recognize one another using only the sense of smell.

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project idea determines if the color of light affects the growth of plants.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

How do organic materials become soil? This science experiment measures what materials biodegrade.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Demonstrate how to tell the age of an egg without having to crack it open.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Determine whether butterflies like to drink sugar water, salt water, or plain water.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.