Good Health and Well-Being, Ninth Grade Science Projects (Page 3)

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

Create and Test Your Own Hydrogel Face Mask Recipe!

Science Fair Project Idea

Engineering Design Process

Have you ever tried a beauty face mask? Cosmetic face masks are skin care products that promise rapid hydration of your skin to make it look younger and more radiant. Hydrogel face masks are made of jelly-like materials that are infused with special ingredients to nurture your skin. The ingredients for cosmetic products like face masks are carefully selected by cosmetics chemists. Each product is designed to have the properties that are necessary for its intended purpose. In this science… Read more

CRISPR Gene Editing of Escherichia coli

Science Fair Project Idea

Scientific Method

Many scientists are currently very excited about CRISPR, as it has the potential to revolutionize gene editing. But what exactly is CRISPR and what does it do? CRISPR is a novel tool in gene editing that allows the modification of genetic DNA at specific target sites in many different organisms. Researchers have high hopes that this technology can, one day, cure genetic diseases, as mutated DNA sequences can easily be corrected. In this project, you will use CRISPR to mutate a DNA sequence… Read more

Dealing with Diabetes: The Road to Developing an Artificial Pancreas

Science Fair Project Idea

Engineering Design Process

Imagine if you had to take medicine every time you ate, and you had to use a math formula to figure out how much medicine to take based on the nutritional makeup of the food, how you were feeling, and what activities you were planning to do. You might also need extra medicine throughout the day (even in the middle of the night) based on your blood glucose levels. People with diabetes who take insulin do this every day. They use finger sticks and blood glucose meters or a continuous glucose… Read more

Death Rays: What Duration of Ultraviolet Exposure Kills Bacteria?

Science Fair Project Idea

Scientific Method

Ultraviolet light can damage DNA molecules. If a cell's DNA repair mechanisms can't keep up with the damage, mutations are the result. As harmful mutations accumulate, the cell eventually dies. How much ultraviolet light is too much for a bacterial cell? Read more

Deep Knee Bends: Measuring Knee Stress with a Mechanical Model

Science Fair Project Idea

Scientific Method

Are you interested in things like prosthetic limbs and artificial joints that can help people with disease or injury to lead a normal life? Or maybe you're interested in sports medicine or physical therapy? Either way, this project could be a good match for you. Find out how the tension on the knee joint changes as a function of angle by building a simple mechanical model. Read more

Delayed Release Pill Challenge: Getting Medicine to the Right Place at the Right Time

Science Fair Project Idea

Engineering Design Process

A lot of medication comes in the form of pills that you need to swallow. But not all pills are the same! Some look like little capsules, others are made of pressed powder. Why are there different types of pills? Different types of pills release their active ingredients in different ways. Some release their active ingredient right after initial administration. Others release their active ingredient much later. Such drugs are called delayed-release drugs. These kinds of pills have to be… Read more

Design a Wearable Air Quality Index Monitor

Science Fair Project Idea

Engineering Design Process

You can look up information about local air pollution, such as the Air Quality Index (AQI), online or even get alerts on your phone. But what if you could wear a device that continuously monitors the air quality around you in real time, alerting you to unsafe levels? Such a device could alert a person with asthma when they need to go inside, let you know if smoke from a nearby wildfire is drifting in your direction, or signal when it is time to take a break on a hazy summer day. The Science… Read more

Disinfectants

Science Fair Project Idea

Scientific Method

Disinfectants are products that kill harmful bacteria that inhabit surfaces. Disinfectants can be in household and personal cleaning products. Which products work best? Compare different household cleaning products, like bleach or Lysol, to see which ones kill the most bacteria. Compare different brands of antibacterial hand soap or dish soap to see which brand is the most effective. How do hand sanitizers work? Compare rub-on hand sanitizers to see if they work better than alcohol, or compare… Read more

Do Antibiotics Change Your Gut Microbiome?

Science Fair Project Idea

Scientific Method

There are thousands of bacteria in your gut that help you digest your food, recover important nutrients, and maintain your health. What happens to those bacteria when you take antibiotics? In this science project you will find out by accessing and analyzing a real data set of the gut microbiome (bacteria and other microbes) from healthy adults before and after they are given antibiotics. Read more

Good Health and Well-Being, Ninth Grade Science Projects (99 results)

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