What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Test whether spot magnets can help improve the symptoms of an injury.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

In this science fair project, young children notice and track changes in trees throughout the year.

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

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

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

The purpose of this science fair project is to build a basic radio.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Free science fair project idea examining how different types of water affect plant germination and growth.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Examine the effect of pressure on carbonation in soda.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Discover whether cold or hot water from the faucet will boil faster on the stove.