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This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Try this entertaining and educational math activity that will teach your child how to add and subtract decimals.

Help your child construct and author a "sempuyo," a traditional Japanese book with accordion-style pages; she will develop her writing and fine motor skills.

This science fair project idea produces varying pitches of sound.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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.

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot initiate a domino effect.

Invite your fourth grader--and her friends--to channel their inner rock stars as they make their own choreographed music video.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Here's a fun arts and crafts activity that has you and your child creating a book with a secret hollow!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This activity will help your child tackle those tricky fraction word problems by way of a hands-on method.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Give your child some simple craft supplies and see what happens in this heartwarming and artistic contribution to the Seder table this year.

Show your young artist how to celebrate Mary Cassatt, an Impressionist painter, by creating a mother-child painting in her style.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Teach your child golf without the clubs! Introduce her to Pebble Golf, a fun beach game and a great way to develop her depth perception.

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

In this design challenge, your child will make a bottle rocket using typical household items.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.