High School Science Experiments (Page 31)

Build a Brushbot

STEM Activity

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Brushbots are a simple, fun type of robot that you can build out of arts and crafts materials. They are easy to build and you do not need any previous experience with robotics. You can build them yourself, build two robots with a friend and race them against each other, or even make them sumo wrestle! Go to the Materials section to see what parts you need to build a brushbot, and see the instructions for a step-by-step guide on how to build one. Read more

Build an 'Impossible' Wind-Powered Car

Science Fair Project Idea

Engineering Design Process

Is it possible for an entirely wind-powered vehicle to travel directly downwind faster than the wind? This might seem counterintuitive or like it would violate the law of conservation of energy. After all, any good scientist knows that perpetual motion machines are impossible. However, as demonstrated by YouTubers Rick Cavallaro, Derek Muller (Veritasium), and Xyla Foxlin, you can take advantage of some tricky physics to make this vehicle work. Can you build—or even improve—your own… Read more

Building the Tallest Tower

Science Fair Project Idea

Scientific Method

Skyscrapers are impressive structures. What does it take to design a building so tall? Engineers use strong materials and innovative design to push the limits of gravity. They use special tables to simulate earthquakes and test models of their buildings. In this project, you will build your own earthquake table and see how tall you can make a tower out of LEGO® bricks. You can even measure how hard your earthquake table shakes using the accelerometer of your smartphone and a sensor app. Read more

Can Cell Phones Survive a Drop Test?

Science Fair Project Idea

Engineering Design Process

Why do so many people use cell phone cases? Do cell phones really need the extra protection, or is it just because cases look fancy? In this engineering science project, you will test the durability of calculators instead of cell phones, find out if cases increase the durability of the device, and build some of your own cases that do! Read more

Click a Button Without Your Hands: Design a Puff Switch

Science Fair Project Idea

Engineering Design Process

Have you ever wondered how you could push a button without using your hands? How would you type on a computer or play a video game? You could use a puff switch - an electronic switch activated by blowing into a straw. This type of assistive device can help users with limited mobility or physical disabilities do everything from using a computer to steering a wheelchair. In this project, you will design, build, and test a puff switch that is connected to a tiny programmable board that you can use… Read more

Comparing the Sweetness of Sugar & Sugar Substitutes

Science Fair Project Idea

Scientific Method

Cake, cookies, pie, ice cream, hot chocolate, lemonade... Yum! What do all these delicious treats have in common? Sugar. In addition to providing sweetness, sugar adds bulk, flavor, and structure to foods. But is it necessary to add sugar to achieve sweetness? Can the same sweetness be achieved using sugar substitutes like artificial or natural sweeteners? In this project, you will test sugar and sugar substitutes and compare the sweetness of each in relation to sugar. In the end, your day will… Read more

Design a Mini Solar Tracker System

Science Fair Project Idea

Engineering Design Process

How can you squeeze as much power as possible out of solar panels if you do not have a lot of space to install them? By tracking the sun! Keeping a solar panel pointed directly at the sun throughout the day can maximize the amount of power it produces. In this project you will design, build, and test your own miniature solar tracking system using a fun block-based programming language - no coding experience required! Read more

Effects of Exercise: Changes in Carbon Dioxide Output

Science Fair Project Idea

Scientific Method

You might know that your body needs oxygen to keep going, and that you breathe out carbon dioxide as waste. What happens when you exercise? You have probably noticed that you breathe faster, and your heart beats faster. What triggers your body to respond in this way? How does it "rev up" to keep your muscles going? In this project, you will get a peek into the fascinating science of exercise physiology and find out—with the help of a color changing reaction. Read more

Find the Best Pinwheel Design

STEM Activity

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Wind energy is becoming more and more popular across the United States, maybe you have even seen a wind farm close to where you live! In 2015, approximately 7% of the electricity used in the U.S. was generated by wind, so who knows, when you switch on a light bulb in your house, that light might be coming from wind energy! Wind energy is generated by wind turbines. These machines can look like giant pinwheels, and their job is to turn energy from the wind into mechanical or electrical energy.… Read more

Forces and Laws of Motion Lessons

Blog Post

Covering forces and laws of motion in science class? Try one of these five free lesson plans to help students get hands-on with physics. Teach Forces and Motion with 5 Free experiments Teaching elementary and middle school students about forces, motion, energy, and Newton's laws is an important part of standards-based science curriculum. At Science Buddies, we know that getting kids hands-on with these concepts can be a powerful way to help them learn… Read more

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