All Science Fair Projects
1000 science fair projects with complete instructions, find science fair project ideas from our collection of 1000+ stem projects, which school grade are you in.
What subject do you like?
What topic interests you?
New to Science Fair Projects?
Magic Science Experiments
Rock Science Projects & Intro to Rocks
Solar System Projects & Intro to the Solar System
DIY Lava Lamp Projects & Science of Lava Lamps
Acid and Base Science Projects & Intro to Acids and Bases
Magnetic Science Projects
Winter Science Experiments
Egg Projects
Candy Science Experiments
STEM Challenges
Balloon Science Projects
Edible Science Projects
Nature Experiments
Water Experiments
Recycled Materials Projects
Volcano Experiments
Quick Science Fair Projects You Can Do In A Day
Easy Science Fair Projects for Home and School
Best Science Fair Projects
Good Testable Questions
Popular Science Fair Projects for Kids
STEM Projects & Extracurricular STEM Activities for Kids
Science Activities for Preschoolers
Easy & Fun Science Kindergarten Experiments
Science Projects for 1st Graders
Second Grade Science Experiments
Science Projects for 3rd Graders
Science Projects for 4th Graders
Science Fair Projects for 5th Graders
Science Fair Projects for 6th Graders
Science Projects for 7th Graders
Science Fair Projects for 8th Graders
Science Fair Projects for High School
Science Fair Project FAQ
What are easy science fair projects to do.
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Changing the Color of Flowers
Baking Soda Volcano
Swimming Raisins
Egg with Vinegar
Color of Skittles Experiment
Jumping Rice Krispies
Mixing Colors of Light
Camouflage and Hide
Light and Dark on Seed Germination
Make a Parachute
Project details and more projects at Easy Science Fair Projects →
What are the Top 10 science projects? What is the best science project ever?
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Jet Lag in Hamsters (circadian rhythm, Biology science fair project)
Egg with Vinegar (acid-base reaction, Chemistry science fair project)
Galileo's Inclined Plane Experiment (acceleration, Physics science fair project)
Plant's Favorite Color for Photosynthesis (Photosynthesis, Botany science fair project)
Color and Taste (color perception, Psychology science fair project)
Does Dog Saliva Kill Bacteria? (antibacterial, Microbiology science fair project)
Decomposing Plastic Spoons (biodegradable materials, Environmental Science science fair project)
Super Hero Egg Shells (structural engineering, Engineering science fair project)
Music Math: Playing Notes with Equations (music, Math science fair project)
Temperature's Effect on Seawater (climate change, Earth Science science fair project)
Project details at Best Science Fair Projects →
What are some cool science fair projects?
Explosive Elephant Toothpaste
Electrifying Lemon Battery
Making Oobleck: Liquid or Solid?
Egg Drop Project
Colors of Skittles Experiment
Cloud in a Bottle
Egg in a Bottle
Plastic Milk
Project details and more projects at Popular Science Fair Projects →
What are some testable questions?
What makes a cloud form?
Can drink and food taste different just by changing its color?
Does the color of light affect photosynthesis?
Does temperature affect seed sprouting?
What makes popcorn pop?
Project details and more projects at Testable Questions Science Fair Projects →
Can I do a science fair project in a day?
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Rocket Film Canisters
Make Your Own pH Indicator
Testing Antacids
Uncovering Fall Colors
Which Candle Burns the Fastest?
Fire-Resistant Balloons
Can Peanuts Heat Water?
Project details at Quick Science Fair Projects →
What are some hands-on ways to find inspiration for my science fair project?
Science museums.
Don't worry about how much it costs to get into the science museum, as there may be free admission days or free passes to a science museum near you! Check your credit card for offers, your local library for free museum passes, and nearby science museums for free entrance days.
Find a science museum near you and prepare to be awed by all that you can learn there! I always learn something new and am inspired whenever I go to a science museum!
Look around and observe
Try an Easy Science Project!
How do I start a science fair project?
What is the scientific method?
What should I do after I have a science fair project idea?
How do I make a science fair board?
Where can I find a science fair competition?
The www Virtual Library: Science Fairs website also has a collection of science fairs from all over the world, as well as national, state, regional, local, and even virtual competitions!
Science Projects Resources
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Experiments Setup – Start with some observations about the cans. Are they the same size? What about the same shape? List the ways the cans are the same. Then list the ways the cans are different. Now ask a few more questions. Do you think the cans will sink or float when placed in water? Do you think they will all …
A sink or float experiment is fun and easy to do for preschoolers, kindergarten and early elementary. Learn about buoyancy and density!
The 40 grams of sugar added to a can of regular soda make it sink, and the relatively tiny amount of artificial sweetener used in diet soda has a negligible effect on the mass, enabling the can to float.
For this experiment you will need: • several unopened cans of regular soda of different varieties • several unopened cans of diet soda of different varieties • a large aquarium or sink. Fill the …
Sometimes the best way to find out if something will sink or float is just to try it—and that is exactly what you’ll do in this “floatable objects” experiment! Gather up some objects from around your house to test their sinking or floating …
Observing the floating and sinking behavior of diet and sugared sodas is a classic chemistry demonstration. Learn how to perform this experiment as a quantitative lab that can be accomplished as an at-home …
Ever wonder why some cans of soda sink and others float? Join us in this experiment to find out! We'll measure the mass and volume of each can, and then modify them to make them hover in …