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

This experiment will explore the best way to create a perfect soft-boiled egg.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

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

This science fair project idea investigates food preference of birds.

Science fair project that uses distillation to convert salt water into fresh water.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

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

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

This project concerns activity happening millions of miles away, on the sun.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

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

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science fair project idea determines if a particular chemical has an effect (increase or decrease) on the heart rate of Daphnia.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

This science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.