Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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 creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Learn all about balance and motion as your child designs a corn maze!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.