Science Bob Pflugfelder
Science Bob: Science Fairs
Find out what the difference is between a science demonstration and a science experiment. Then explore Science Bob's page to learn about ideas for science fairs, the Scientific Method, science fair resources, and even some helpful advice.
Science Buddies
Science Buddies: Point of a Parabola: Focusing Signals for a Better Wireless Net
Here's a project with practical applications for homes with a wireless network. This project shows you how to build and test parabolic reflectors for the transmitters on your network. You may be able to increase the range of your...
Science Buddies
Science Buddies: Computer Sleuth: Identification by Text Analysis
Here's a project where you can try your hand at being a detective with your computer. In this project you'll write a program to do some basic analysis of features of written text (for example, counting the length of each word in the...
Science Buddies
Science Buddies: The Perfect Marriage of Computer Science & Medicine
Find out the real explanation for why your parents are so weird. Here is a project that lets you explore the internet to find out why your "DNA blueprint" is so important to health and disease. In this project you will use methods that...
Science Buddies
Science Buddies: Follow the Bouncing Ball: A Web Animation Project
This project is a fun way to try your hand at programming. You'll learn how to create some simple animations, and you'll perform tests and make measurements to help you create more realistic-looking animations. All you need to get...
Science Buddies
Science Buddies: Writing a Simple Calculator Program With Java Script
This is a good first-time programming project. You'll learn how to use JavaScript to create a basic calculator program that you can run in your Web browser.
Science Buddies
Science Buddies: Paragraph Stats: Writing a Java Script Program to 'Measure' Text
This is a challenging first-time programming project. You'll learn how to use JavaScript to create a simple program to analyze one or more paragraphs of text. Your program will count sentences, words and letters, and report the resulting...
Science Buddies
Science Buddies: Write a Java Script Binary/decimal/hexadecimal Converter
This is a challenging first computer science project. You'll learn the basics of how digital devices can represent numbers using only 0's and 1's, and you'll write a JavaScript program to convert numbers between binary, decimal and...
Science Buddies
Science Buddies: How Fast Is Your Computer?
Computer technology continues to develop at a rapid pace. A new home computer is noticeably faster than a machine from five years ago, and dramatically faster than a machine from ten years ago. Exactly how much faster? This project will...
Science Buddies
Science Buddies: It's Raining, It's Pouring: Chemical Analysis of Rainwater
Here is an interesting project that could be approached from several different scientific angles: Environmental Science, Weather & Atmosphere, Chemistry, or Plant Biology. You can probably think of your own variations to emphasize...
Science Buddies
Science Buddies: Program to Check a Sudoku Solution
Sudoku puzzles have become extremely popular over the past couple of years. You can find books of puzzles for beginners to experts, and many newspapers print Sudoku puzzles daily. This project challenges you to write a computer program...
Science Buddies
Science Buddies: Which Fruits Can Ruin Your Dessert?
Here is a basic project for investigating enzymes that prevent gelatin from solidifying. This way you can understand why it is some fruits are not recommended for inclusion when it comes to making gelatin.
Science Buddies
Science Buddies: How Much Baking Powder Do Quick Breads Need?
If you like to bake, this could be a good project for you. There is a purpose for each of the ingredients in your recipes, but not everyone is always aware of what that purpose may be. Though this lab takes multiple days, you will...
Science Buddies
Science Buddies: Can Baking Soda Substitute for Baking Powder in a Recipe?
There's nothing quite like the smell of fresh-baked muffins for breakfast on a Saturday morning. If you're into baking, you might want to try this insightful project that lets you witness the chemistry behind making muffins. You'll get...
Science Buddies
Science Buddies: Determining Iodide Content of Salt
In this week long "kitchen chemistry" project you will use chemicals from the supermarket to test for the presence of iodine and iodide in salt. These are common micronutrients added to some preparations of table salt. A materials list,...
Science Buddies
Science Buddies: How Much Energy Is Stored in Different Types of Food?
In this project you'll learn a method for measuring how much chemical energy is available in different types of food. You will build your own calorimeter to capture the energy released by burning a small food item, like a nut or a piece...
Science Buddies
Science Buddies: Using Daphnia to Monitor Water Toxicity
In a bioassay, a living organism serves as a detector for toxins-the same way canaries were used in coal mines to detect invisible toxic gases. In this project, water fleas (Daphnia magna), a freshwater crustacean, are used in a bioassay...
Science Buddies
Science Buddies: Circumscribing a Circle About a Triangle
Here is a project that combines Computer Science and Mathematics. Prove a method for circumscribing a circle about a triangle (as shown). You'll also learn how to create an interactive diagram to illustrate your proof, using an applet...
Science Buddies
Science Buddies: Taking Off on a Tangent
This is an interesting geometry project that goes back to the time of Archimedes, the famous Greek mathematician. You can combine this mathematical project with computer science and take this ancient problem into the twenty-first century...
Science Buddies
Science Buddies: Inscribing a Circle in a Triangle Using the Geometry Applet
Here is a project that combines Computer Science and Mathematics. Prove a method for inscribing a circle within a triangle (as shown). You'll also learn how to create an interactive diagram to illustrate your proof, using an applet that...
Science Buddies
Science Buddies: Are There Dangerous Levels of Lead in Local Soil?
The element lead is a neurotoxin that is particularly dangerous to young children. Among other uses, lead compounds were common paint additives until being phased out for safer titanium-based additives beginning in the 1960's. Lead...
Science Buddies
Science Buddies: Get Down and Dirty: How Does Soil Change With Depth?
What covers less than 10% of the Earth's surface, yet is a vital natural resource for terrestrial life? What filters ground water and supports most of our food production, not to mention the production of building materials and paper?...
Science Buddies
Science Buddies: Getting Carried Away: Measuring Soil Erosion
When you think of environmental challenges facing the world, the first things that come to mind might be global warming, or loss of biodiversity, since these are often in the newspapers. A serious problem that you may not have heard...
Science Buddies
Science Buddies: Mapping Troposhperic Ozone Levels Over Time
Ozone in the stratosphere protects the earth by absorbing harmful ultraviolet radiation from the sun. However, when ozone occurs in the troposphere, it is harmful to health. In this project you can use data from EPA monitoring stations...
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