This math game helps fourth graders improve their understanding of positive and negative integers in a fun way.

This op art craft project turns out eye-popping abstract art! Your kid can flex her creativity to make op art with a few household items in her fave colors.

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

These easy-to-make felt friends are created by sewing two pieces of felt together with yarn and make great gifts for holidays such as Easter.

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.

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Your child can cut her way into making a fun collage of mod-style flowers that will dazzle and delight!

Most of us are familiar with haiku, but the tanka is an even older form of Japanese poetry. Learn to write a tanka poem with this activity.

Figuring out fractions can be a challenge! But with this game your child will become more comfortable converting fractions after only a little practice.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Learn about the architecture of Asia by building your very own model of a pagoda!

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

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.

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

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.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This zombie cake will give your Halloween enthusiast an excuse to lurch and limp around the kitchen. Share this zombie cake with friends and the undead.

Make a bouquet of colorful duct tape flowers in this hands-on spring craft.

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

Upcycle an old dress shirt into artsy bow with just a few simple sewing techniques.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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.

Your fourth-grader can hone her baking skills with this classic American recipe the whole family will enjoy!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this activity, your child will use two powerful questions to investigate a thought and the truth behind it. They will write and perform a skit using mindfulness and these important questions.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.