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Science Fair Project Ideas

Find the physical science and behavioral/health science, science fair project ideas you're looking for. Many different science fair projects are available for you to browse through and get ideas for your own science fair project.

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This science fair project idea studies how time perception changes with age.
How Does time Perception Change As You Get Older?
Behavioral/Health Science
Elementary School
This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.
Why Do Leaves Change Color in the Fall?
Chemistry
Middle School
This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.
What Kind Of Paper Airplane Works Best?
Physics
Middle School
This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.
The Best Pet for your Health
Behavioral/Health Science
Psychology and Sociology
Middle school science fair project helps determine the freezing and boiling points of water and the effect of salt and other solutes on these temperatures.
Phase Changes: Determine the Freezing and Boiling Points of Water
Chemistry
Middle School
Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.
Lemonade Science
Chemistry
Elementary School
This science project idea determines how people recognize words while reading.
How Important is Letter Arrangement to Reading?
Behavioral/Health Science
Elementary School
This experiment evaluates how a diet that is rich in 'mood-enhancing' foods affects the way people feel over several weeks.
Can Food Boost Your Mood?
Behavioral/Health Science
High School
Here is a fun science fair project idea for elementary school that explores and demonstrate a total and partial solar eclipse when the Moon covers the Sun.
Shadows: How Can the Moon Cover the Sun?
Physical Science
Elementary School
In this free science fair project idea, we make a compound microscope by putting together two magnifying lens.
Doubles: How do Objects Look Through a Compound Microscope?
Physics
Elementary School
Have you ever wondered if the heat from the sun is strong enough to cook food? This science experiment provides step-by-step instructions to help you answer this question.
Solar Hot Dog Cooker
Electricity and Magnetism
Food
Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.
Corrosiveness of Soda
Chemistry
First Grade
Check out info on different methods of preparing dyed materials and determine the colorfastness of dyed fabric in this fun middle school science fair project.
The Art of Dyeing and Colorfastness of Dyed Fabric
Chemistry
Middle School
Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.
Choosing a Light Bulb Filament
Physics
Middle School
This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.
The Psychology of Feeling Watched
Psychology and Sociology
Fourth Grade

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