This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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

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

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.

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 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.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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

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!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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.

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Discover flight initiation distance as you play around in the park with this fun bird watching project!

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.