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This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Make a backbone model to explore human anatomy and life science.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This science fair project idea experiments with spinning color wheels and optical illusions.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Check out this cool science fair project on identifying rocks and minerals for kids.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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.