How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

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.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

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.

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.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

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

This science fair project idea identifies clouds as a means of predicting the weather.

The objective of this science project is to determine the length of time for different seeds to germinate.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.