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Science Buddies

Science Buddies: Rise to the Occasion: Investigating Yeast Fermentation

For Students 3rd - 8th
Did you ever wonder how yeast makes bread dough rise? This project will show you what yeast does to make this happen. You'll also investigate the conditions yeast needs to grow.
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Science Buddies

Science Buddies: Divide and Conquer: Proving Pick's Theorem for Lattice Polygons

For Students 4th - 8th
If you like to play Tetris then you might like this project. You'll learn something interesting about the mathematics of complex shapes.
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Science Buddies

Science Buddies: How Are Antibodies Used for Blood Typing?

For Students 3rd - 7th
The human immune system has various ways of responding to an infection caused by bacteria or viruses. Our bodies produce proteins (antibodies) that are highly specific for the infectious agent as a part of our "humoral" immune response....
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Science Buddies

Science Buddies: Throwing You Some Curves: Is Red or Blue Longer?

For Students 6th - 8th
This a straightforward, but interesting, project in geometry. It is a good first proof to try on your own. You should be able to figure it out by yourself, and you'll gain insight into a basic property of circles.
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Science Buddies

Science Buddies: Build a Motorboat Powered by Surface Tension

For Students 3rd - 8th
If you look carefully, you could find dozens of similar interesting phenomena that are all linked to the surface tension of water. Here is a project that will help you understand and measure the properties of water surface tension.
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Science Buddies

Science Buddies: Exploring Fractals

For Teachers 9th - 10th
Although fractal images can be intriguingly complex, fractals are more than just pretty pictures. For this project, you'll explore the mathematical properties of the famous Mandelbrot and Julia sets. You'll learn about how these images...
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Science Buddies

Science Buddies: Paper Chromatography: Advanced Version 1

For Students 6th - 8th
This project will teach you the basics of analytical chemistry, which is a must for students who want to go into chemistry or materials science. The molecules in objects we see all around us are constantly attracting each other....
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Science Buddies

Science Buddies: Using Laser Pointer to Measure Data Track Spacing on C Ds, Dv Ds

For Students 9th - 10th
You've probably noticed the colorful patterns "reflecting" from the shiny surface of a CD disk. What you are seeing is actually diffraction of white light, and the rainbows of color are diffraction patterns. In this project you'll learn...
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Science Buddies

Science Buddies: Eggs and Hen's Diet: Can You Get Bigger Eggs for Peanuts?

For Students 6th - 8th
The goal of this project is to determine whether feeding chickens a dietary supplement of peanuts will result in larger and heavier eggs. If peanuts do increase egg size, a secondary goal will be to determine the optimal amount of peanut...
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Science Buddies

Science Buddies: Boyle's Law

For Students 9th - 10th
This is a modern version of a classic experiment by Robert Boyle on the compressibility of gases. Boyle discovered the relationship between pressure and volume of gases that now bears his name. This project shows you a simple method for...
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Science Buddies

Science Buddies: Charles's Law

For Students 9th - 10th
This is a modern version of a classic experiment by Jacques Charles on the volume of a gas at different temperatures. Charles discovered the relationship between volume and temperature of gases that now bears his name. This project shows...
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Science Buddies: Solar Cell Power Output vs. Temperature

For Students 6th - 8th
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.
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Science Buddies

Science Buddies: An Aerobic Exercise: Yeast Metabolism and Aeration

For Students 9th - 10th
This is a straightforward project on glucose metabolism in yeast. You'll grow yeast under aerobic and anaerobic conditions and measure carbon dioxide output to assess metabolic efficiency.
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Science Buddies

Science Buddies: What Is Home Sweet Home to a Bug?

For Students 3rd - 8th
If you had to choose between having your favorite dessert, going to a movie, or spending the night at a friend's house, which would you choose? This project shows you how you can "ask" a sowbug (or pill bug) a similar question in order...
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Science Buddies

Science Buddies: From Gas to Rust: Measuring the Oxygen Content of Air

For Students 9th - 10th
Earth's atmosphere, the ocean of air that blankets the planet, is mostly nitrogen and oxygen, with small amounts of other gases. How much oxygen is present in air at sea level? Is air high up in the Appalachians or Rockies? Atop Mount...
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Science Buddies

Science Buddies: Effects of Exercise: Changes in Carbon Dioxide Output

For Students 9th - 10th
Everybody knows that your body needs oxygen to keep going, and that you breathe out carbon dioxide as waste. What happens when you exercise? You've probably noticed that you breathe faster, and your heart beats faster. What triggers your...
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Science Buddies

Science Buddies: The Milky Way and Beyond: Globular Clusters

For Students 9th - 10th
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found most galaxies and since they've been around for so long, globular...
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Science Buddies

Science Buddies: Sunspot Cycles

For Students 9th - 10th
Sunspot activity has been monitored continuously since about 1700. The historical data shows that sunspot activity rises and falls in a roughly 11-year cycle. This project shows you how you can use both graphical and statistical analysis...
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Science Buddies

Science Buddies: An Experiment in Visual Perception

For Teachers 9th - 10th
Graphical methods of data presentation are a key feature of scientific communication. This project will get you thinking about how to find the best way to communicate scientific information.
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Science Buddies

Science Buddies: Understand Shock Levels and Packaging Principles

For Students 3rd - 8th
When you open up your presents on your birthday, you probably don't spend a lot of time admiring the wrapping-you'd much rather see what's inside. It can be the same way with the packaging that products come in, but packaging is...
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Science Buddies

Science Buddies: Photography With Near Infrared Illumination

For Students 9th - 10th
Have you ever wondered what it would be like to have an extra sense? What if you could hear above the normal range (ultrasound) like dogs or bats? This project shows you how you can use a camera, tripod and a special filter to take...
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Science Buddies

Science Buddies: Rock On! Recording Digital Data With Magnets

For Students 3rd - 8th
This is a straightforward project that shows you how data can be digitized and stored on magnetic recording media. You'll learn how alpha-numeric characters are digitized, and you'll use bar magnets to represent the individual data...
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Science Buddies

Science Buddies: Give Yourself a Lift: Lightening the Load With Pulleys

For Students 9th - 10th
Before the Industrial Age, people relied on muscle power for moving and lifting heavy objects. Here's a project that shows you how you can use your head to make heavy lifting easier on your muscles - and your back.
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Science Buddies

Science Buddies: How Far Can Sparks Jump?

For Students 9th - 10th
Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. This project shows you a way to find out by with...

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