In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea provides evidence that air is everywhere and takes up space.

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.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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.

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

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.