Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This science fair project idea identifies clouds as a means of predicting the weather.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science fair project idea determines the probability of a coin landing heads or tails.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Discover how and which salt melts ice the quickest.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.