Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This project compares the strength of one, two, and three-ply toilet paper.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

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 project, waves of vibrations are experimented with using water in glasses.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

In this science fair project, students make their own rain gauge to measure rainfall.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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.

This science fair project idea investigates which objects float and sink in honey, water, and oil.