High School Science Projects (Page 38)

Science Fair Project Idea

Scientific Method

Did you know that a scientific study has shown that chewing Big Red Gum reduces mouth microbes? (ScienceDaily contributors, 2004) The cinnamon oil in the gum is a natural defense against mouth bacteria that cause tooth decay and bad breath. Conduct an experiment to compare products with cinnamon essence in gum, candy, toothpaste, and mouthwash to see if they can decrease mouth germs. Do a before and after swab of the mouth with a Q-tip. Which treatments work the best? Can you find another… Read more

Invasive Species

Science Fair Project Idea

Scientific Method

Invasive species are organisms (either plant or animal) that have been introduced into a new, non-native area and spread rapidly in the new environment due to a lack of regulation by predators. Frequently, invasive species will out-compete native species for resources which can put native species at risk. This is an especially big problem for threatened habitat and endangered species, which are already at risk. Survey your area to document cases of invasive species invading a local… Read more

Predicting the Weather

Science Fair Project Idea

Scientific Method

Before you head for school for the day, you might check the weather to see whether or not you need to wear a jacket or bring an umbrella. It is pretty easy for you to check the TV or internet to see what the weather will be like today, tomorrow, or even next week. The modern-day science of meteorology, or studying and predicting the weather, has many advanced tools at its disposal that make it easy for you to get this information. How did people predict the weather before the invention of… Read more

Rad Radishes: Effects of Irradiation on Seed Germination

Science Fair Project Idea

Scientific Method

DNA is the "instruction manual" for the successful growth of a living thing, from a single cell to a mature adult. When the DNA of an organism is somehow damaged, it can have an impact on the organism's development over time. In this plant science fair project, you will track how irradiation (exposure to radiation) of radish seeds affects germination (sprouting of a seedling from a seed). Read more

From Black to Clear with the Magic of Photochemistry

Science Fair Project Idea

Scientific Method

The rates of some chemical reactions can actually be increased by adding light. Light sometimes interacts with one or more of the chemicals and provides an "energy boost" that dramatically speeds up a normally slow reaction. In this photochemistry science project, you will experiment with the effect of light on a chemical reaction. The reaction converts iodine, which forms a dark-orange solution, to iodide, which is colorless! Read more

Making Jell-o Stronger

Science Fair Project Idea

Scientific Method

Gelatin! It's hard to think of another food that is used as frequently on the dinner table as off. You can find it in all sorts of sweet foods, from ice cream, yogurt, and gummy bears, to marshmallows and yellow colorings for sodas. Off the table, it shows up in glues, photographic paper, playing cards, crepe paper, medicine capsules, hair gels, and professional lighting equipment. From the kitchen to the theater—what a range of uses! In this cooking and food science fair project, you'll… Read more

Do Warmer Seas Make Stronger Hurricanes?

Science Fair Project Idea

Scientific Method

We've all heard that hurricanes draw their immense power from warm ocean waters. Of course, many factors contribute to the formation and growth of a hurricane, but can we expect to find that the warmer the water, the stronger the hurricane will be? This project shows you how to use online data archives to investigate this question. Read more

How to Make a Piano Sing

Science Fair Project Idea

Scientific Method

The renowned pianist Vladimir Horowitz once said, "The most important thing is to transform the piano from a percussive instrument into a singing instrument." In this project, you will learn how you can make piano strings sing using sympathetic vibrations. Find out which notes make another one sing the longest by measuring their sound intensities using a smartphone equipped with a sensor app. Read more

Designing an AI Agent for Expense Tracking

Science Fair Project Idea

Engineering Design Process

Do you have a hard time keeping track of how much money you spend? What if you could automate the task somehow? In this project, you will explore how to use ChatGPT’s Agent mode to create an expense tracker spreadsheet. Read more

Wood vs. Alternative and Recycled Materials

Science Fair Project Idea

Scientific Method

Our forests are a very important natural resource that need to be managed wisely. We use wood products for many different purposes: building materials, paper, cardboard, furniture, fuel, etc. How can we use wood products in a sustainable manner? You can do experiments that examine the growth time of different tree species to see which are good candidates for tree farming. Which types of lumber are most sustainable? You can also compare the effects of clear cutting vs. thinning a forested… Read more

High School Science Projects (693 results)

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