This simple experiment serves as an introduction to the greenhouse effect.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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.

This science fair project idea identifies trees using a dichotomous key.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This experiment will evaluate if chewing gum affects students' test performance.

In this project students experiment with making music using only glasses of water.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This science fair project idea determines if the color of light affects the growth of plants.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This science fair project teaches students about wilting and browning of salad greens.

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.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.