This science experiment tests if dog saliva can really help heal wounds.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Do different types of oil mix or stack? Find out in this science fair project idea!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Making your own glass cleaner is easy, effective and inexpensive!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

In this science fair project you will make a model of a cell membrane using very simple material.

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

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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 project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.