High School Science Experiments (Page 50)

Science Fair Project Idea

Engineering Design Process

Virtual reality (VR) headsets are becoming increasingly popular with consumers for things like viewing 3D pictures and videos, or for playing video games. However, dedicated gaming headsets like the Oculus Rift® and PlayStation® VR can cost hundreds of dollars. Some headsets, like Google Cardboard™, which is literally made out of folded corrugated cardboard (Figure 1), are much cheaper because they can use any smartphone as the screen. Figure 1. A… Read more

Disappearing Act: How Fast Do Different Biodegradable & Compostable Materials Decompose?

Science Fair Project Idea

Scientific Method

Have you ever seen a product labeled "biodegradable" or "compostable" and wondered just how well it decomposes? A lot of different products claim to be biodegradable or compostable, such as food containers, bags, packaging materials, and spoons and forks. Not only do they clearly come in different shapes and sizes, but they are made of different materials as well. Do they decompose differently, and, if so, which decomposes the fastest? In this science project, you will make your own indoor… Read more

Discover Chlorophyll Variety in Different Plants Using Paper Chromatography

Science Fair Project Idea

Scientific Method

Do you like to analyze stuff and finding out what it is made of? An analytical chemistry method, called chromatography, allows you to separate mixtures of compounds and to identify each individual compound within the mixture. Chromatography is used by many scientists, for example food scientists, forensic scientists, or organic scientists to analyze all kinds of mixtures such as food, blood, or medicine. In this project, you will be using paper chromatography to analyze the pigments from… Read more

Dissolved Oxygen in Water vs. Temperature

Science Fair Project Idea

Scientific Method

To survive, we need oxygen in the air we breathe. Oxygen is also essential for most aquatic organisms, but there is much less oxygen available in water than in air. How much oxygen can dissolve in water? Does the temperature of the water matter? Learn how to measure dissolved oxygen and then see how oxygen concentration changes with water temperature. Read more

DNA Fingerprinting

Science Fair Project Idea

Scientific Method

Are you interested in the technical and ethical aspects of genetic screening, forensic science, and DNA fingerprinting? Scientists use different forms of a gene, called alleles, to differentiate between two fingerprints. One such sequence used in human DNA fingerprinting is the Alu repeat (a 300 base pair repetitive sequence of DNA) on chromosome 16. During evolutionary time, up to 1 million copies of the Alu repeat have become randomly inserted throughout the human genome. Within a specific… Read more

Explore Ocean Science!

Blog Post

Teach students about various ocean sciences topics, including density, acidification, ocean circulation, the impact of rising temperatures and the melting of polar ice, and more. Students exploring ocean sciences learn about the formation of the ocean, the role of the ocean in the Earth's water cycle, the importance of the ocean as a habitat, and how the ocean fits into sustainability goals for the future. Ocean Sciences Lessons, Projects, and… Read more

Exploring the Uncanny Valley

Science Fair Project Idea

Scientific Method

What do you consider creepy? Clowns? Zombies? Video game characters with jerky movement? In 1970, a roboticist by the name of Masahiro Mori suggested that people are "creeped out" by robots that are almost, but not exactly, humanlike. He called this phenomena the uncanny valley. But researchers are still exploring and defining the uncanny valley. In this science project, you can do your own exploration—just try not to creep your friends out too badly! Read more

Fight Flooding and Pollution with...a Garden?!

Science Fair Project Idea

Scientific Method

What looks pretty, stops flooding, and helps fight pollution? A rain garden! Find out how by building and testing your own miniature rain garden in a plastic bottle. Read more

Finding the Center of the Milky Way Galaxy Using Globular Star Clusters

Science Fair Project Idea

Scientific Method

The Milky Way is the edgewise view of our home galaxy, a disk made up of billions of stars. The Sun resides on one of the spiral arms of the disk, 30,000 light-years from the thick hub of the galaxy. The actual center, with a black hole 3-4 million times the Sun's mass, is hidden by dust clouds in space. In this astronomy science fair project, you will use astronomical data to locate the center of this galaxy. Read more

Forensics: How Does It Matter? Measure the Spatter!

Science Fair Project Idea

Scientific Method

Every criminal leaves behind evidence at the crime scene. The trick to catching the criminal is collecting all of the evidence and making sense of it. This is what the forensic expert does. In this science project you will be correlating the size of blood stains to the distance they fell, but do not get too grossed out. You will be doing it with fake blood. If you like figuring out mysteries, this is the science project for you! Read more

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