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1000 Science Fair Projects with Complete Instructions

10 Best Science Fair Projects

10 Best Science Fair Projects

Check out our Top 10 Best Science Fair Projects! Finding the best science fair project can be tough, but we've made it easy by selecting the best science project from each category and including its topic. Get inspired by these science projects and create the best science fair project ever! Explore more cool science fair project ideas by grade level at the top of this page.

  1. Jet Lag in Hamsters (circadian rhythm, Biology science fair project)

  2. Egg with Vinegar (acid/base reaction, Chemistry science fair project)

  3. Galileo's Inclined Plane Experiment (acceleration, Physics science fair project)

  4. Plant's Favorite Color for Photosynthesis (color for photosynthesis, Botany science fair project)

  5. Color and Taste (color perception, Psychology science fair project)

  6. Does Dog Saliva Kill Bacteria? (antibacterial, Microbiology science fair project)

  7. Decomposing Plastic Spoons (biodegradable materials, Environmental Science science fair project)

  8. Super Hero Egg Shells (structural engineering, Engineering science fair project)

  9. Music Math: Playing Notes with Equations (music, Math science fair project)

  10. Temperature's Effect on Seawater (climate change, Earth Science science fair project)

Jet Lag in Hamsters
1. Jet Lag in Hamsters
Do hamsters suffer from jet lag? Find out if hamsters have a circadian rhythm!
Hard
Egg with Vinegar
2. Egg with Vinegar
Explore this fascinating egg experiment with vinegar that makes a bouncy egg! Discover the science of acid and base chemical reactions and protein denaturation!
Easy
Galileo's Inclined Plane Experiment
3. Galileo's Inclined Plane Experiment
Learn how to use Galileo's inclined plane experiment to demonstrate acceleration with a fun and easy science project!
Hard
Plant's Favorite Color for Photosynthesis
4. Plant's Favorite Color for Photosynthesis
Do plants have a favorite color for photosynthesis?
Easy
Color and Taste
5. Color and Taste
Do you think the color of a beverage affects how it tastes?
Medium
Does Dog Saliva Kill Bacteria?
6. Does Dog Saliva Kill Bacteria?
Is it true that a dog's saliva can be a secret weapon against bacteria?
Easy
Decomposing Plastic Spoons
7. Decomposing Plastic Spoons
Let's find out how quickly biodegradable spoons can decompose in soil!
Hard
Super Hero Egg Shells
8. Super Hero Egg Shells
Learn how arches are used to support heavy things with this fun experiment using egg shells!
Easy
Music Math: Playing Notes with Equations
9. Music Math: Playing Notes with Equations
Have you ever wondered how to play music notes with mathematical equations?
Hard
Temperature's Effect on Seawater
10. Temperature's Effect on Seawater
What happens to seawater when the ocean temperatures rise? Let's explore how temperature affects the pH and salinity of seawater!
Hard

Science Fair Project FAQ

How do I start a science fair project?

Science fair projects are a fun and unique way to discover science by asking a question and doing a science project. We'll help you find a science fair project idea and guide you through the process of doing and presenting your science fair project with Science Fair Coach's Science Fair Project Guide.

What are some hands-on ways to find inspiration for my science fair project?

Science museums are great places to explore if you're looking for inspiration for your next science fair project or just want to learn more about science. Science museums, natural history museums, space museums, and discovery museums are all great places to do that! You can discover all sorts of interesting things about science and find cool project ideas for science fairs.

There may be free admission days or free passes to a science museum near you! Check your local library for free museum passes, nearby science museums for free entrance days and your credit card for offers.

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!

What should I do after I have a science fair project idea?

If you have a science fair project idea, Science Fair Coach can help you turn it into a full science fair project! Starting at Introduction to Science Fairs, we'll guide you through how to do a science fair project, from designing and conducting your experiment to collecting and analyzing your findings. Then, we'll help you showcase your results on a science fair board with our Guide to Science Fair Posters.

How do I make a science fair board?

Your science fair board is where you show off your science fair project for everyone to see and learn from. With our Guide to Science Fair Posters, you can make sure your science fair board stands out and impresses at the science fair!

What is the scientific method?

The 7 steps of the scientific method helps us understand how nature works. Learn how the scientific method is used in a science fair project example, and how it's evolved through history as scientists used different ways to learn about nature with our Guide to the Scientific Method!

What is the engineering design process?

The 6 steps of the engineering design process helps us design an effective solution to a problem. Learn how to use the engineering design process with the example of the egg drop challenge in our Guide to the Engineering Design Process!

Where can I find a science fair competition?

Science fair competitions are an excellent opportunity to explore science. One of the of the premier science advocacy organizations, the Society for Science, is associated with more than 400 science fair competitions in almost every US state, as well as over 70 other countries, regions, and territories. You can find out if there's a Society of Science affiliated science fair near you!

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 virtual competitions!

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