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Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project idea explores the different properties & interactions of sugar molecules.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea investigates whether plants can survive being frozen.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project investigates why the number of visible stars changes from place to place.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.