High School Science Experiments (Page 4)

Make String from Algae

STEM Activity

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214 reviews

Did you know that the seaweed you've seen in the ocean or even eaten as a snack is inspiring innovators to imagine new materials? Large brown algae, like kelp, contains polymers—long chains of molecules—that are more environmentally friendly than the ones in most plastics. These natural polymers (alginates) could eventually be used to create sustainable everyday objects. Try your hand at using a bit of chemistry to turn biodegradable polymers from algae into your own custom… Read more

Tallest Paper Tower Challenge

Science Fair Project Idea

Engineering Design Process

In this engineering challenge, you will use limited materials to build a paper tower as tall as possible, but there's a twist! Your tower must also support a heavy weight at the top without collapsing. Looking for inspiration? You can see how other students have tackled this and other annual Science Buddies Engineering Challenges. Teachers, lesson plan versions of this challenge are also available. Read more

How Far Will It Fly? Build & Test Paper Planes with Different Drag

Science Fair Project Idea

Scientific Method

Just one sheet of paper can lead to a whole lot of fun. How? Paper planes! All you have to know is how to fold and you can have a simple plane in a matter of minutes! But what design should you use to build the best plane? In this aerodynamics science project, you will change the basic design of a paper plane and see how this affects its flight. Specifically, you will increase how much drag the plane experiences and see if this changes how far the paper plane flies. There is a lot of cool… Read more

How to Make Slime

STEM Activity

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It's gooey. It's sticky. It's slime! Learn to make your own homemade slime with this quick and easy recipe. Read more

Make a Paper Circuit

STEM Activity

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Do you like arts and crafts projects like drawing, painting, cutting shapes out of construction paper, or origami? Instead of drawing that bright sun or lights in a house, imagine adding real lights to your artwork! This project will show you how, by introducing you to the world of electronics with "paper circuits." Paper circuits are made with just a few simple items; you can use a battery and some copper tape to add tiny lights to your project. The best part is that it is easy to do, and you… Read more

Make a Lemon Volcano

STEM Activity

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Make a colorful erupting volcano in your kitchen with lemons and baking soda! Read more

What Makes Ice Melt Fastest?

Science Fair Project Idea

Scientific Method

If you live in a place that gets cold in the winter, you have probably seen trucks out spreading a mixture of sand and salt on the streets after a snowfall to help de-ice the road. Have you ever wondered how this works? This basic chemistry project can give you some clues. Read more

25+ Coding Projects for Beginners and Beyond

Blog Post

Planning an hour of code with students for Computer Science Education Week? Try these projects and activities to help students explore computer coding now and after! It's easy for students to get started learning about computer programming and video game and app design. Basic coding involves writing an algorithmic set of steps that tell a computer exactly what to do. No matter what language or programming environment will be used, learning to write… Read more

13 Tasty Food Science Experiments!

Blog Post

These food science experiments lead to fun, unusual, and tasty creations! Try one of these STEM projects for engaging kitchen chemistry, and molecular gastronomy. There's a bit of physics and technology baked in, too! 13 Tasty Food Science Experiments! With food science projects and experiments, students measure, mix, cook, bake, and investigate the importance of specific ingredients, the science of mixtures and solutions, and the chemical reactions… Read more

Build a Paper Speaker

STEM Activity

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238 reviews