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

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.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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?

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

In this project, different childproof containers are tested to see how childproof they really are.

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

Examine the effect of pressure on carbonation in soda.

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 identifies clouds as a means of predicting the weather.

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

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?

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.