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In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea produces varying pitches of sound.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Learn all about balance and motion as your child designs a corn maze!

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

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 demonstrate different ways to generate static electricity and record its effects.

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.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.