High School Science Experiments (Page 174)

Is There Such a Thing as Too Much Gaming?

Science Fair Project Idea

Scientific Method

Have you ever heard someone described as a video game addict? Do you think video game addicts actually exist? You can determine that for yourself in this science fair project by examining real data from a California research scientist for over 3,000 video game players! Read more

Is your Physics Textbook Lying? Linear & Nonlinear Springs

Science Fair Project Idea

Scientific Method

Spoiler alert: Your physics textbook might contain an inaccurate equation. Are you shocked? Let us explain — many questions in your physics textbooks are simplifications of how things behave in the real world. For example, in physics textbooks, springs are usually modeled with the equation Force = stiffness x displacement: Equation 1: [Please enable JavaScript to view equation] … Read more

It's Crowded in Here! A Study of Plant Population Density

Science Fair Project Idea

Scientific Method

Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population density) on the growth and health of plants. Read more

It's Hard Work to Work Harden! Learn How to Make Metals Stronger

Science Fair Project Idea

Scientific Method

It's easy to forget that metals are everywhere and in nearly everything. They are a part of our lives in so many ways that we hardly notice them. But just stop and think about it. We use metal spoons to eat and cook our food. Cars, bikes, and planes are composed of metals. Metals are in our furniture and part of your school supplies. Some people even have metal in the dental work in their mouths. Their strength and dependence is obviously very important. But what are metals? In this science… Read more

Juice Box Geometry

STEM Activity

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Juice boxes sure are convenient—just poke a straw in and sip away! But have you ever noticed that some juice boxes don't seem to have as much juice as others, even when they have a lot of packaging? You might be amazed how much thought goes into designing a juice box. Each manufacturer has carefully calculated how big each side of the box needs to be to hold a certain amount of juice inside and how altering the box's dimensions affects its overall appearance and… Read more

Jumping Distance

Science Fair Project Idea

Scientific Method

Mike Powell of the United States currently holds the world record for the long jump at 8.95 meters, which is almost 30 feet! How did he jump so far? In this experiment, learn how a long jumper uses momentum from running to jump farther than the competition. Read more

Keep Your Arduino Robot From Falling Off a Cliff

Science Fair Project Idea

Engineering Design Process

Humans cannot see infrared light, but robots can! At least, they can when they use special infrared light sensors. These sensors can help robots detect nearby objects to avoid collisions and even help them avoid driving off edges. In this project you will build your own Arduino robot that uses infrared sensors to avoid driving off the edge of a table. Read more

Keep Your Candy Cool With the Power of Evaporation!

STEM Activity

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Have you ever wondered how sweating helps keep you cool on a hot summer day? Sweat, which is mostly water, cools us down when it evaporates. When water evaporates, it changes from a liquid to a gas. The gas carries away heat with it, helping to remove heat from your skin. Not only can evaporation cool down your body, it can also cool down other things, such as chocolate. Heat on a hot summer day can turn your solid candy bar into a gooey, melted mess, but how well can evaporation keep your… Read more

Keeping Up

Science Fair Project Idea

Scientific Method

Do you ever feel like you need to move your legs faster than your parents do just to keep up with them? This could be because of the difference in leg length between you and your parents. How many more steps do you need to take compared to your parents to walk down the block? Can you use a walking test to determine how tall a person is? This science project will help you find out! You can even use your phone and a sensor app to record the steps and determine the pace. Read more

Killing 'Vampires': Saving Money and Power by Turning Off Computer Peripherals

Science Fair Project Idea

Scientific Method

What do you think about killing vampires? No, no, not the kind that drink people's blood, but the kind that suck your power and money away. Equipment like televisions, computers, printers, and fax machines all use electricity to operate, of course, but do you realize that this equipment might still be sucking electricity from the wall, even when you think it's turned off? These electricity-suckers are called vampire loads. In this science project, you will investigate how much power these… Read more

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