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Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Science fair project that creates fog using bottles of hot and cold water.

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

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

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This science project researches the correlation between barometric pressure and wind velocity.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.

Take a dive into the candy jar with this yummy science experiment.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

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.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

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

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.