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In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

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

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

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

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.

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

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project idea investigates if fats add to the flavor of food.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project idea explores whether talking to a plant will help it grow.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Find out whether putting something on top of a plant will inhibit its growth.