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In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this activity, your child will be challenged to make a tower using paper cups.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Have your child kick off their summer vacation by making a miniature water slide!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this activity your child will create their very own marble maze!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This project examines whether playing music during class helps students learn or if it distracts students from learning.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.