Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

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

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Find out whether matte or shiny nail polish lasts longer.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

This science fair project idea studies the differences in gender perception between people.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

This science fair project idea investigates if fats add to the flavor of food.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project that compares tap water and bottled water for the presence of common impurities.

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

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea produces varying pitches of sound.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Determine which metal has the highest rate of conductivity.