High School Science Experiments (Page 27)

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Explore optical illusions and trick the eye with these science fair projects, experiments, and STEM activities. How Do Optical Illusions Trick the Eye? Optical illusions (also called visual illusions) can be fun, mind-boggling, mesmerizing, puzzling, and surprising! Our eyes don't always see what they should. An optical or visual illusion occurs when there is a disconnect between our brain and our eyes or when something goes wrong in the visual process. Science related to light, vision, and… Read more

Star light, Star bright: How Does Light Intensity Change with Distance?

Science Fair Project Idea

Scientific Method

Have you ever looked up at the stars at night and wondered how fast they were moving or how far away they were? By studying how the brightness of a star changes with distance, you can answer those questions. In this astronomy science project, you'll create a model of starlight and use a sensor app with your smartphone to discover the key relationship between brightness and distance. Read more

Stop the Train! Magnetic Brakes for a Maglev Train

Science Fair Project Idea

Scientific Method

Did you know that you can use magnets to build a train that floats above its tracks? In this project, you will also use magnets to make the train stop, preventing it from crashing into the end of the track. Will adding more magnets help the train stop sooner? Read more

The Reasons for the Seasons

Science Fair Project Idea

Scientific Method

Do you live someplace where you get to experience the full glory of all four seasons? If so, you know well the heady blossoms and dramatic skies of spring; the long, sun-drenched days of summer; the trees shaking in crimson and gold in fall; and the sparkling, brittle snows of winter. But you might not know why we have these seasons, over and over again, in a cycle as predictable as the rising and setting of the Sun. The reasons for the seasons are surprising and have to do with Earth's tilt… Read more

Think Fast! Measure Your Reaction Time!

STEM Activity

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‘Think fast!’ someone says, as they toss a ball toward you. You catch the ball, but do you really ‘think’ about doing it? Probably not! Most likely you raise your hands to catch the ball without ever consciously thinking about it. How does this happen? Lucky for you, your brain is able to react to things in your environment without you having to consciously make a decision about how to react. There are many ways to measure the speed of this type of reaction, and in this… Read more

Turn Mud into Energy With a Microbial Fuel Cell

Science Fair Project Idea

Scientific Method

What can you do with a bucket of soil? You could use it to grow some beautiful plants and vegetables—or you could use it to produce electricity! Surprised about that? You actually can power electric devices with just mud! Are you curious about how this works? You need some little helpers in the soil—bacteria—that are able to turn their food sources within the soil into electricity in a device called a microbial fuel cell. But is this possible with any soil and does the soil… Read more

What's the Fastest Way to Cool a Soda?

Science Fair Project Idea

Scientific Method

So you've just finished mowing the lawn on a hot summer day, and you'd like a cold, refreshing drink as a reward. You look in the fridge, and oops! it's empty. The sodas are still sitting in the cupboard, at room temperature. What's the fastest way to get that soda down to a cold, drinkable temperature with materials readily at hand? Read more

16+ Engineering Challenges for Middle School

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Inspire students to think like engineers with hands-on building and design challenges! Spark interest and build engineering design skills with one of these free engineering projects for middle school students. 16+ Engineering Design Projects to Inspire Middle School Students! Engineering design projects and challenges are a great way to ignite student interest in STEM. When students tackle an engineering design challenge, they are encouraged to… Read more

3D Print a Drone Frame

Science Fair Project Idea

Engineering Design Process

Drones come in all shapes and sizes. In this engineering project you will design and 3D-print your own frame for a miniature drone. Read more

7 Rainbow Experiments for Science Class

Blog Post

Making learning fun is sometimes half the battle! With the right activities, educators can ensure learning about science and engineering involves hands-on fun for students of all ages. Build in some colorful science exploration with STEM experiments on a rainbow theme! Rainbow STEM! The science of visible light and the physics involved in what we see as a rainbow can lead to exciting hands-on science investigations and experiments. The "cool factor" of… Read more

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