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.

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

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.

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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

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

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

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

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.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

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

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

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

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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.

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

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

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