Twelfth Grade Science Experiments (Page 65)

3D Print with Icing: No 3D Printer Required!

STEM Activity

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Are you wondering how a 3D printer works? In this fun activity, you will be the printer and make colorful 3D prints using royal icing. No 3D printer is required, and your prints are edible! Read more

5 Fizzing, Foaming, and Bubbling Science Projects!

Blog Post

Get a reaction from students when you add these fizzy, foaming, fun projects to science class! Five Foaming, Fizzing, and Bubbling Science Projects! www.sciencebuddies.org/stem-activities All five of these hands-on science activities involve a chemical or physical reaction that is simple to trigger and a lot of fun to watch! Try one of these STEM projects to shake things up with projects that fizz, foam, or bubble! Make an Alka-Seltzer Powered Lava… Read more

A Cool Way to Make Electricity: Solar Cell Power Output vs. Temperature

Science Fair Project Idea

Scientific Method

Solar cells provide a clean way of making electricity directly from sunlight. In this project you will build a simple circuit and experimental setup to investigate whether the power output of a solar cell changes with ambient temperature. Read more

Adsorption: Dyeing Fabrics with Kool-Aid

Science Fair Project Idea

Scientific Method

Have you ever wondered how your clothes get their color? Dyeing textiles is a very complicated process and involves a lot of chemistry. Not only are the properties of the dye and fabric important, but the dyeing conditions also have to be exactly right to get optimal color adsorption. Curious about how it works? In this science project, you will color wool with Kool-Aid® and explore the chemistry of dyeing. Read more

Air Pollution

Science Fair Project Idea

Scientific Method

Smog days are often posted in your local newspaper. Check how many smog days your city has had in the last year. How does it compare to to other years? You can also take pictures of your city landscape on high and low smog days. How do the pictures compare? How does smog in the atmosphere affect visibility? What is smog made of? You can use tongue depressors smeared with Vaseline to check for smog particles in different areas; just stick in the ground and look at them a few days later. … Read more

Antibiotic Resistance

Science Fair Project Idea

Scientific Method

Antibiotics work by destabilizing the metabolism or cellular structure of bacteria, preventing growth, and causing bacteria to die. Some strains of bacteria have mutated and found a way to resist the actions of antibiotics. These are called resistant strains because they resist the actions of available antibiotic treatments. There are many different types of antibiotics that are continually being developed to combat new strains of resistant bacteria. Some antibiotics work better on different… Read more

Archimedes Squeeze: At What Diameter Does an Aluminum Boat Sink?

Science Fair Project Idea

Scientific Method

Where do you get your best ideas? At school with your friends? When you are out for a bike ride? Over 2,200 years ago, a scientist named Archimedes got one of his best ideas when he sat down in his bath. Eureka! He went running through the streets without even bothering with his clothes. What was he so excited about? He had discovered that when objects, like his body, are placed in water, water is pushed out of the way. Have you noticed that, too? The weight of the water that is pushed out of… Read more

Are Composite Faces More Attractive than Real Faces?

Science Fair Project Idea

Scientific Method

Psychologists have long studied why people find certain faces more attractive than others. One interesting method used in this area of research is mixing several faces together to make a composite face. The composite face averages the input faces, so that small, non-symmetric features tend to get lost. In this human behavior science project, you will use an online tool to make composite faces, and determine how they compare to real faces in perceived attractiveness. Read more

Astronaut Stress Management Training for Space Flight

Science Fair Project Idea

Scientific Method

Training for space flight isn't just a physically demanding job. You need to be prepared mentally and emotionally, too! In this science project, you will test how a breathing technique can improve your fight-or-flight response induced by the stressors of space flight. Read more

Avoiding Disaster: The Right Bridge Design

Science Fair Project Idea

Scientific Method

A bridge collapse, like that of the I-35W Mississippi River Bridge, can be a major disaster. Bridges that cannot hold enough weight to do their intended job can be a serious public safety issue. And if they collapse, they can also cause economic damage due to costly rebuilding and people and companies scrambling to figure out how to circumvent the months of traffic impacts. Figure 1. On August 1, 2007 the I-35W Mississippi River Bridge collapsed killing 13… Read more

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