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.

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

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

This experiment tests which gender is better at catching how a magician performs his tricks.

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

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

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?

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

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 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.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.