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

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

This witches' brew recipe for kids is a cool mix of lemonade, tapioca pearl "eggs," and gummy worms. Try this witches' brew recipe for kids this Halloween.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Using water, corn syrup, and sequins, your child can create a unique art project while exploring what happens when different liquids are mixed together!

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great 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.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

It's easy to be a master Italian chef with this target practice game played with a pizza board constructed out of felt and Velcro bean bag "toppings."

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Boost shape recognition with this matching game where your child will pair up sticks to create simple shapes.

Make Frankenstein bolts for your trick-or-treater this Halloween. These homemade Frankenstein bolts make your child look just like the popular monster.

This experiment evaluates if personality affects the type of movies that people prefer.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

What better way to raise awareness about the environment than with an eco-friendly Earth-themed party? Get your party started with this step-by-step guide.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

Help your second grader grasp the concept of verb tenses with this silly card game!

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.