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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

In this project children practice the scientific method while playing with puffy paint.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this science project, the center of gravity is explored.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Challenge your learner to design and build a city of their own in this creative engineering activity.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea's objective is to understand the concept of air pollution and examine the quality of air in our environments.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this activity your child will create their very own marble maze!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.