Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project idea examines which type of insulation holds in the most heat.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

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.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

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

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

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.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

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.

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.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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?

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

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