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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.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this activity, create a poem that emerges from the collaboration of parent and teen in the activity of observing, discussing, reading, and writing.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Introduce your child to the concept of the melting pot by decorating a patriotic 4th of July planter.

Explore what freedom and liberty mean to you this Fourth of July with a beautiful portrait collage!

This science fair project idea discovers the principle of conservation of mass.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This science fair project idea measures physical dexterity as a function of temperature.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Explore the neural and mental mechanisms at play in mental imagery.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Here's an activity that uses second-semester high school algebra to determine which pizza gives you the most bang for your appetite. Here's how to get started:

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.