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  2. Uncover the inner workings of reactions, mixtures, and chemical phenomena through exciting experiments. Explore classic and cutting-edge high school science experiments in this collection of top-quality science investigations.

    • Anne Marie Helmenstine, Ph.D.
    • Copper and Nitric Acid. When you place a piece of copper in nitric acid, the Cu ions and nitrate ions coordinate to color the solution green and then brownish-green.
    • Hydrogen Peroxide with Potassium Iodide. Affectionately known as elephant toothpaste, the chemical reaction between the peroxide and potassium iodide shoots out a column of foam.
    • Any Alkali Metal in Water. Any of the alkali metals will react vigorously in water. How vigorously? Sodium burns bright yellow. Potassium burns violet. Lithium burns red.
    • Thermite Reaction. The thermite reaction essentially shows what would happen if iron rusted instantly, rather than over time. In other words, it's making metal burn.
    • Biology and Life Science High School Science Fair Projects
    • Chemistry High School Science Fair Projects
    • Physics High School Science Fair Projects
    • Engineering High School Stem Fair Projects

    Explore the living world with these biology science project ideas, learning more about plants, animals, the environment, and much more.

    Bunsen burners, beakers and test tubes, and the possibility of (controlled) explosions? No wonder chemistry is such a popular topic for high school science fair projects!

    When you think of physics science projects for high school, the first thing that comes to mind is probably the classic build-a-bridge. But there are plenty of other ways for teens to get hands-on with physics concepts. Here are some to try.

    Many schools are changing up their science fairs to STEM fairs, to encourage students with an interest in engineering to participate. Many great engineering science fair projects start with a STEM challenge, like those shown here. Use these ideas to spark a full-blown project to build something new and amazing!

  3. Mar 4, 2024 · Mar 4, 2024. Bunsen burners, colorful chemicals, and the possibility of a (controlled) explosion or two? Everybody loves chemistry experiments! We’ve rounded up the best activities, demos, and chemistry science fair projects for kids and teens. Try them in the classroom or at home.

  4. Aug 1, 2019 · Updated on August 01, 2019. High school science students can be hard to impress, but here's a list of cool and exciting chemistry demonstrations to capture student interest and illustrate chemistry concepts. Sodium in Water Chemistry Demonstration. Getty Images / Andy Crawford and Tim Ridley.

    • Anne Marie Helmenstine, Ph.D.
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  5. Chemistry experiments for high school don't have to be complicated. The following projects use materials that are easy to acquire, but are definitely high school level chemistry experiments. If you need help downloading any of the printable projects, check out these helpful tips. Easy Chemistry Project: Conductivity and Exploring Solutions.

  6. There are so many high school lab experiment options available! We’ve identified both in-person and virtual labs. Here are the topics we’ve covered: Acids & bases; Metallic characteristics; Reaction types; Separation techniques; Hydrogen gas/fuel; Acids & bases In-person lab: Cabbage Juice pH Indicator

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