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Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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

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

The goal of this project is to create an exciting topographical map out of dough.

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

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

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

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

This project compares the strength of one, two, and three-ply toilet paper.

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

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

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 examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this science fair project, students make their own rain gauge to measure rainfall.

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

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

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.