This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

This science fair project investigates why the number of visible stars changes from place to place.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This project explores whether similar type movie scenes are accompanied by music with similar characteristics.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This science fair project idea explores the fastest average speed a human can talk.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This project explores whether the tempo of the background music we hear in a businesses is important to the environment and how customers move.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Make sourdough bread...and learn some colonial history and modern science in the process!

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Determine whether the application of Febreeze will lower the bacterial count.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.