The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

This science fair project idea compares the cuteness reaction between genders.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

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.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Science fair project that compares tap water and bottled water for the presence of common impurities.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.