This science fair project idea compares the mass and density of objects.

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

This project explores differences in people's reactions to images in color and images in black and white.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

The purpose of this science fair project is to build a basic radio.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This project determines how much the rebound rates of tennis balls change after ten games.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.