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  1. A science fair is an opportunity for students to do an independent science project following either the scientific method or the engineering design process. Students conduct their research then present their results at a science fair. Science fairs occur at different levels including classroom, school-wide, regional, state, and international.

    • Variables

      Older students are invited to read more about that in our...

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      Preparing for Science Fair Judging— Practice Makes Perfect!...

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    • Kindergarten-1st Grade Science Fair Projects
    • 2nd-4th Grade Science Fair Projects
    • Are You Ready For The Science Fair?

    1. Lemon Volcano

    Skip the vinegar volcano and try lemon juice! Kids will learn about the chemical reaction between citric acid and baking soda.

    2. DIY Bouncy Balls

    Learn about polymers while making a DIY toy! This variation on slime uses a few simple ingredients. <span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”>&...

    3. Shiny Pennies

    A classic experiment that kids love is Shiny Pennies. Collect dirty tarnished pennies and have kids soak them for a minimum of 5 minutes in different acidic liquids. We used vinegar, salsa, lime juice, and lemon juice. After soaking, remove them from the solution and rinse in soapy water then compare which ones are shiniest. Take notes on which acid worked best to shine the pennies. Variation: Don’t rinse all the pennies after removing them from the different liquids. Can you see a difference...

    10. Magic Rollback Can

    You just can’t get rid of this physics project! This project explores the difference between potential and kinetic energy. <span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”>&am...

    Whether your child has never participated in the science fair or is an old pro, I hope the science fair projects here will inspire them to have fun, explore science, and get creative the same time.

    • 2 min
  2. Aerodynamics & Hydrodynamics. The 'Ultimate' Science Fair Project: Frisbee Aerodynamics. Aerodynamics & Hydrodynamics. The Paper Plate Hovercraft. Aerodynamics & Hydrodynamics. The Science of Launching an Airplane by Catapult. Aerodynamics & Hydrodynamics. The Swimming Secrets of Duck Feet. Aerodynamics & Hydrodynamics.

  3. Browse Science Projects. Over 1,200 free science projects for K-12. Browse by subject, grade level, or try our Topic Selection Wizard to find your winning science project. With science projects in 32 different areas of science from astronomy to zoology, we've got something for everyone! Let us help you find a science project that fits your ...

    • Alex Yang
    • How Different Types of Light Affect Vitamin C Content in Fruits. This project involves studying how different light sources affect the vitamin C content of fruits.
    • The Effects of Exercise on Heart Rate. This project investigates how different types of exercise impact heart rate. By measuring heart rate before, during, and after activities such as running, cycling, and jumping jacks, you can analyze how the heart and body responds to exercise and which movements push your heart rate the most.
    • The Aerodynamics of Paper Airplanes. Learn about aerodynamic principles by observing the flight of paper airplanes. By constructing paper airplanes with different designs, including variations in wing shape, size, and folding techniques, you can analyze their flight performance and see what design flies the farthest or is airborne for the longest.
    • How Sleep Impacts Academic Performance. You can use yourself or your friends as test subjects for this experiment, where you analyze the correlation between sleep duration and academic performance.
  4. Jun 23, 2019 · What we’ve seen in 100s of winning science fair projects. First, some projects are more advanced. Some projects were winners in national science fairs. However, that doesn’t mean a scaled-down version can’t be tried. Or, maybe an alternative approach. Second, many of these science fair projects were completed through a mentorship program.

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  6. Feb 6, 2023 · Animal Habitat Activities and Projects. Balloon Science Experiments and Projects. Climate Change Activities and Project Ideas. Electricity Experiments and Science Projects. Ocean Experiments, Projects, and Activities. Plant Life Cycle Projects and Experiments. Science Projects for Learning About Germs. Space Science Experiments and Activities.

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