This science fair experiment idea's objective is to understand the general concept of an acid and a base.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science fair project idea explores how length affects the weight a bridge can hold.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

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

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Make a backbone model to explore human anatomy and life science.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Is it a square or a circle? See if you can trick your friends with this zany science project!

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!