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 idea explores how far the âdanger zoneâ is from different types of caution signs.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This science fair project idea compares biodiversity between drops of water.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

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

This science research project challenges students to think of more effective lobster farming methods.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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 fair project idea explores the different properties & interactions of sugar molecules.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!