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

This experiment will explore whether adding different substances to a gel affects its strength.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

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.

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

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea produces varying pitches of sound.

This science fair project idea investigates the difference in reaction times between boys and girls.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

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

Science fair project that determines whether brain size is correlated with intelligence.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.