What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Liven up your sixth grader's study of world geography with these three fun challenges.

Is your child struggling to remember the rules of place value? Here's a fun series of hands-on activities to help your child put the value in place value!

Help your child make an imaginative scene come to life by making a diorama. Your child will be practicing three dimensional thinking and language arts skills.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

In this design challenge, your child will create a parachute for a small toy using typical household items.

It doesnât take long for flashcard drills about prefixes and suffixes to get old. Turn the learning process into a treasure hunt with this fun activity!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Have your kid try his hand at mood charades. It's a great way to promote social development and hone reading comprehension skills, not to mention tons of fun!

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

To practice place value, here's a fun hands-on activity to get your child flipping through place value with ease!

Help your kids put together a travel journal for your family's next vacation to get them reading, writing, and thinking about what's happening on the trip.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Draw your own beautiful mandala with this easy technique that ensures symmetrical results every time!

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.

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.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.