The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

In this project students experiment with making music using only glasses of water.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this experiment we will be determining whether birds prefer certain colors of seed.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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

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

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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

This science fair project idea explores the different properties & interactions of sugar molecules.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

In this project, the affects of vitamin E are observed on a rose petal.

This project investigates the affect of storage temperature on microwave popcorn.