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This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This project examines what types of objects burn and which burn faster and cleaner.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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 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.

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

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

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

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

Explore the effect of wind speed on the burning rate of a candle.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This experiment observes inattentional blindness and investigates whether certain age groups or genders are more likely to demonstrate this phenomenon.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.