Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Study and categorize the functions and types of genes. Run gene experiments chosen from links. Analyze data, explain ideas in a detailed report.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

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.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

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

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

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.

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.

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!

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

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.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

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!

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.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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

Science fair project idea examines what is remembered from high school education. Formulate and administer high school curriculum tests to adults over 21.

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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.