What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project that determines whether mass and weight are the same or different.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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.

Examine the effect of pressure on carbonation in soda.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea investigates how color affects temperature.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This science fair project idea explores substances that cause a bubble to last longer.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

This science project allows students to study the psychology of happiness.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.