This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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.

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

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

This project explores ways to prevent static electrical shocks.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

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

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

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

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

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

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