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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project investigates why the number of visible stars changes from place to place.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This project compares the strength of one, two, and three-ply toilet paper.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this project children practice the scientific method while playing with puffy paint.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

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

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea compares biodiversity between drops of water.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.